User:Abyssal/List of Tremadocian life

  • †Acadagnostus –
    • †Acadagnostus argentinus –
  • †Acanthambonia – ?
  • †Acanthambonia –
    • †Acanthambonia sp. –
  • †Acanthodiacrodium –
    • †Acanthodiacrodium sp. –
  • †Acanthodus –
    • †Acanthodus sp. –
    • †Acanthodus uncinatus –
  • †Acanthograptus –
    • †Acanthograptus sp. –
  • †Acerocare – ?
    • †Acerocare sp. –
  • †Acerocarina – ?
  • †Acerocarina –
    • †Acerocarina glaber –
    • †Acerocarina sp. –
  • †Acidiphorus – ?
  • †Acidiphorus –
    • †Acidiphorus brevis –
    • †Acidiphorus sp. –
  • †Acodina –
    • †Acodina lirata – aff.
    • †Acodina sp. –
  • †Acodus –
    • †Acodus deltatus –
    • †Acodus similaris –
    • †Acodus sp. –
  • †Acontiodus –
    • †Acontiodus rectus –
    • †Acontiodus sp. –
  • †Acrotreta –
    • †Acrotreta attica – cf.
    • †Acrotreta dissimilis –
    • †Acrotreta sp. –
  • †Adelograptus – ?
  • †Adelograptus –
    • †Adelograptus antiquus –
    • †Adelograptus clarki –
    • †Adelograptus hunnebergensis –
    • †Adelograptus sp. –
  • †Aethocrinus –
    • †Aethocrinus sp. –
  • †Aetocrinus –
    • †Aetocrinus sp. –
  • †Agerina –
    • †Agerina praematura –
    • †Agerina sp. –
  • †Agnostus –
    • †Agnostus sp. –
  • †Aguloceras –
    • †Aguloceras sp. –
  • †Airograptus –
    • †Airograptus sp. –
  • †Akelina – n. gen.
    • †Akelina akelina – n. sp.
  • †Akmolina –
    • †Akmolina minor –
    • †Akmolina sp. –
  • †Akoldinioidia –
    • †Akoldinioidia sulcatus – n. sp.
  • †Alichovia –
    • †Alichovia analogica –
  • †Altiplanelaspis –
    • †Altiplanelaspis sp. –
  • †Amblycranium – ?
  • †Amblycranium –
    • †Amblycranium cornutum – n. sp.
    • †Amblycranium cornutum –
    • †Amblycranium populus – n. sp.
    • †Amblycranium populus –
    • †Amblycranium sp. –
    • †Amblycranium variabile – n. sp.
    • †Amblycranium variabile –
  • †Amechilus –
    • †Amechilus palaora – n. sp.
    • †Amechilus tuberculatus –
  • †Ampyx –
  • †Amsassia –
    • †Amsassia argentina – n. sp.
  • †Amygdalotheca –
    • †Amygdalotheca sp. –
  • †Anacheirurus – ?
    • †Anacheirurus sp. –
  • †Anatifopsis –
    • †Anatifopsis sp. –
    • †Anatifopsis trapeziiformis –
  • †Anedriophus –
    • †Anedriophus moroccoensis –
  • †Angarella –
    • †Angarella lopatini –
    • †Angarella sp. –
  • †Angelina –
    • †Angelina hyeronimi – cf.
    • †Angelina hyeronimi – aff.
    • †Angelina hyeronimi –
    • †Angelina hyeronomi –
    • †Angelina kayseri –
    • †Angelina punctolineata –
    • †Angelina sp. –
    • †Angelina spinosa – n. sp.
  • †Anglagnostus – n. gen.
  • †Anglagnostus –
    • †Anglagnostus barroubioensis – n. sp.
    • †Anglagnostus sp. –
  • †Anguloceras – n. gen.
  • †Anguloceras –
    • †Anguloceras depressum – n. sp.
    • †Anguloceras ovatum – n. sp.
    • †Anguloceras rotundum – n. sp.
    • †Anguloceras sp. –
  • †Anisograptus – ?
  • †Anisograptus –
    • †Anisograptus flexuosus – cf.
    • †Anisograptus richardsoni – cf.
    • †Anisograptus sp. –
  • †Anisotechnophorus – ?
    • †Anisotechnophorus nuculitiformis – n. sp.
    • †Anisotechnophorus nuculitiformis –
  • †Annamitella –
    • †Annamitella retangulosa –
  • †Annbactroceras –
    • †Annbactroceras felinense –
    • †Annbactroceras martyi –
  • †Annoceras –
    • †Annoceras costatum –
    • †Annoceras multicameratum –
  • †Anthaspidella –
    • †Anthaspidella lamellata – n. sp.
  • †Antiplebetoceras –
    • †Antiplebetoceras sp. –
  • †Aocaspis –
    • †Aocaspis sp. –
  • †Apaplanias –
    • †Apaplanias rejectus –
  • †Apatokephaloides –
    • †Apatokephaloides oxleyi – n. sp.
  • †Apatokephalops –
    • †Apatokephalops sp. –
    • †Apatokephalops yanheensis –
  • †Apatokephalus – n. gen.
  • †Apatokephalus – ?
  • †Apatokephalus –
    • †Apatokephalus canadensis – cf.
    • †Apatokephalus exiguus –
    • †Apatokephalus finalis – ?
    • †Apatokephalus longifrons – n. sp.
    • †Apatokephalus longifrons –
    • †Apatokephalus nyaicus – n. sp.
    • †Apatokephalus nyaicus – aff.
    • †Apatokephalus nyaicus –
    • †Apatokephalus sarculum –
    • †Apatokephalus serratus –
    • †Apatokephalus sp. –
  • †Apheoorthina –
    • †Apheoorthina sp. –
  • †Apheoorthis – ?
  • †Apheoorthis –
    • †Apheoorthis khantaiskiensis –
    • †Apheoorthis melita – cf.
    • †Apheoorthis melita –
    • †Apheoorthis ocha –
    • †Apheoorthis samensis – cf.
    • †Apheoorthis samensis –
    • †Apheoorthis sp. –
    • †Apheoorthis submelita –
    • †Apheoorthis vicina –
  • †Apheorthis –
    • †Apheorthis meeki – cf.
  • †Aphetoceras –
    • †Aphetoceras sp. –
  • †Apoplanias –
    • †Apoplanias rejectus –
  • †Apoptopegma – n. gen.
  • †Apoptopegma – ?
  • †Apoptopegma –
    • †Apoptopegma dickinsi – n. sp.
    • †Apoptopegma sp. A – informal
    • †Apoptopegma sp. B – informal
  • †Aporthophyla –
    • †Aporthophyla sp. –
  • †Aquilarella –
    • †Aquilarella tapiai – n. sp.
  • †Araiopleura –
    • †Araiopleura sp. –
  • †Arbusculidium –
    • †Arbusculidium sp. –
  • †Archaeorthis –
    • †Archaeorthis christiania –
    • †Archaeorthis christianiae –
    • †Archaeorthis sp. –
  • †Archaeoscyphia –
    • †Archaeoscyphia minganensis –
    • †Archaeoscyphia nana –
    • †Archaeoscyphia pulchra –
    • †Archaeoscyphia sp. –
  • †Archegocystis – ?
    • †Archegocystis sp. –
  • †Archinacella –
    • †Archinacella magna – n. sp.
    • †Archinacella parva – n. sp.
    • †Archinacella pileolum – n. sp.
    • †Archinacella pileolum –
    • †Archinacella wanwanensis –
  • †Arenicolites –
    • †Arenicolites sp. –
  • †Argodiscus –
    • †Argodiscus espilezorum –
  • †Aristocystis –
    • †Aristocystis sp. –
  • †Aristocystites –
    • †Aristocystites sp. –
  • †Armenoceras –
    • †Armenoceras sp. –
    • †Armenoceras spp. –
  • †Arthrorhachis –
    • †Arthrorhachis mobergi –
  • †Asaphellina –
    • †Asaphellina sp. –
  • †Asaphellus – ?
  • †Asaphellus –
    • †Asaphellus artus – n. sp.
    • †Asaphellus aspinus – n. sp.
    • †Asaphellus caramarcensis –
    • †Asaphellus catamarcensis –
    • †Asaphellus catamarcensus –
    • †Asaphellus communis – n. sp.
    • †Asaphellus communis –
    • †Asaphellus convexus – n. sp.
    • †Asaphellus fecundus –
    • †Asaphellus fezouataensis –
    • †Asaphellus homfrayi –
    • †Asaphellus inflatus –
    • †Asaphellus jujuanus – aff.
    • †Asaphellus jujuanus –
    • †Asaphellus riojanus – cf.
    • †Asaphellus riojanus –
    • †Asaphellus sp. – cf.
    • †Asaphellus sp. –
    • †Asaphellus trinodosus –
    • †Asaphellus tungtzuensis –
    • †Asaphellus versus –
    • †Asaphellus yanheensis –
  • †Asaphopsis – ?
  • †Asaphopsis –
    • †Asaphopsis angulatus –
    • †Asaphopsis sp. –
  • †Asaphopsoides –
    • †Asaphopsoides sp. –
  • †Aspidograptus – ?
  • †Aspidograptus –
    • †Aspidograptus implicatus – cf.
    • †Aspidograptus minor – cf.
    • †Aspidograptus sp. –
  • †Astraborthis –
    • †Astraborthis quebradensis –
  • †Aulacoparia – ?
  • †Aulacoparia –
    • †Aulacoparia huygenae – n. sp.
    • †Aulacoparia huygenae –
    • †Aulacoparia quadrata –
    • †Aulacoparia sculpta – n. sp.
    • †Aulacoparia sculpta –
  • †Aulichnites –
    • †Aulichnites sp. –
  • †Aurograptus –
    • †Aurograptus sp. –
  • †Australispongia –
    • †Australispongia compressa – n. sp.
  • †Azygograptus –
    • †Azygograptus sp. –
  • †Babinka –
    • †Babinka prima –
    • †Babinka sp. –
  • †Bactroceras –
    • †Bactroceras mourguesi –
    • †Bactroceras sp. –
  • †Balanocystites –
    • †Balanocystites primus –
  • †Balantiocystis –
    • †Balantiocystis regnelli –
    • †Balantiocystis sp. –
  • †Baltograptus –
    • †Baltograptus geometricus –
    • †Baltograptus vacillans –
  • †Barnesoceras – n. gen.
  • †Barnesoceras – ?
  • †Barnesoceras –
    • †Barnesoceras clavatum – n. sp.
    • †Barnesoceras conosiphonatum – n. sp.
    • †Barnesoceras expansum – n. sp.
    • †Barnesoceras lamellosum – n. sp.
    • †Barnesoceras lentiexpansum – n. sp.
    • †Barnesoceras lentiexpansum – cf.
    • †Barnesoceras percurvatum – n. sp.
    • †Barnesoceras sp. –
    • †Barnesoceras transversum – n. sp.
  • †Basilicus –
    • †Basilicus carinata –
    • †Basilicus sp. –
  • †Bassleroceras – ?
  • †Bassleroceras –
    • †Bassleroceras bridgei – cf.
    • †Bassleroceras bridgei –
    • †Bassleroceras champlainense – n. sp.
    • †Bassleroceras champlainense –
    • †Bassleroceras kirbyi – n. sp.
    • †Bassleroceras microscopium –
    • †Bassleroceras smithbasinense – n. sp.
    • †Bassleroceras sp. –
    • †Bassleroceras spissiseptum –
    • †Bassleroceras triangulum – n. sp.
    • †Bassleroceras vassarina – n. sp.
    • †Bassleroceras vassarina –
  • †Bathmoceras –
    • †Bathmoceras australe –
  • †Bathycheilus – ?
    • †Bathycheilus sp. –
  • †Bathyurus –
    • †Bathyurus sp. –
  • †Batostoma –
    • †Batostoma sp. –
  • †Bavarilla – ?
  • †Bavarilla –
    • †Bavarilla sp. –
  • †Bearriverops –
    • †Bearriverops alsacharovi – n. sp.
    • †Bearriverops alsacharovi –
    • †Bearriverops borderinnensis – n. sp.
    • †Bearriverops borderinnensis –
    • †Bearriverops deltaensis – n. sp.
    • †Bearriverops ibexensis – n. sp.
    • †Bearriverops ibexensis – cf.
    • †Bearriverops loganensis – n. sp.
    • †Bearriverops loganensis –
    • †Bearriverops sp. A – informal
  • †Bellaspidella –
    • †Bellaspidella logani –
    • †Bellaspidella parallela –
  • †Bellefontia – ?
  • †Bellefontia –
    • †Bellefontia acuminiferentis –
    • †Bellefontia chamberlaini –
    • †Bellefontia gyracantha –
    • †Bellefontia ibexensis –
    • †Bellefontia nonius –
    • †Bellefontia sp. –
  • †Beltella – ?
  • †Beltella –
    • †Beltella sp. –
    • †Beltella ulrichi –
  • †Benthamaspis –
    • †Benthamaspis canadensis – n. sp.
    • †Benthamaspis canadensis –
    • †Benthamaspis diminutiva –
    • †Benthamaspis obrepta –
  • †Bergaueria –
    • †Bergaueria perata – aff.
    • †Bergaueria prantli –
    • †Bergaueria sp. –
  • †Bernardite –
    • †Bernardite sp. –
  • †Biaspis –
    • †Biaspis katuniana –
  • †Bienvillia –
    • †Bienvillia angelini –
    • †Bienvillia grandis – n. sp.
    • †Bienvillia sp. –
    • †Bienvillia tetragonalis –
  • †Bifodina –
    • †Bifodina longifrons – n. sp.
  • †Bipulvina – n. gen.
  • †Bipulvina –
    • †Bipulvina croftsae – n. sp.
    • †Bipulvina liaoningensis – n. sp.
  • †Birjusovia –
    • †Birjusovia sp. –
  • †Birmanites –
    • †Birmanites sp. –
  • †Bodenbenderia –
    • †Bodenbenderia longifrons –
  • †Boeckaspis –
    • †Boeckaspis sp. –
  • †Bohemilla –
    • †Bohemilla sp. –
  • †Bohemopyge –
    • †Bohemopyge sp. –
  • †Boreoceras – n. gen.
  • †Boreoceras –
    • †Boreoceras brevicameratum – n. sp.
    • †Boreoceras brevicameratum –
    • †Boreoceras cloudi – n. sp.
    • †Boreoceras cloudi – ?
    • †Boreoceras ovale – n. sp.
    • †Boreoceras ovale –
    • †Boreoceras parvulum – n. sp.
    • †Boreoceras washburni – n. sp.
    • †Boreoceras washburni –
  • †Borthaspidella – n. gen.
  • †Borthaspidella –
    • †Borthaspidella gaspensis – n. sp.
    • †Borthaspidella gaspensis –
  • †Brachyhipposiderus –
    • †Brachyhipposiderus logimus – cf.
  • †Brackebuschia –
    • †Brackebuschia acheila –
  • †Bridgeites – n. gen.
  • †Bridgeites –
    • †Bridgeites discoideus – n. sp.
    • †Bridgeites discoideus –
  • †Broeggeria – ?
  • †Broeggeria –
    • †Broeggeria salteri – cf.
    • †Broeggeria salteri –
    • †Broeggeria sp. –
  • †Broeggerina –
    • †Broeggerina sp. –
  • †Bronteopsis –
    • †Bronteopsis toernquisti –
  • †Brooksella –
    • †Brooksella sp. –
  • †Bryograptus – ?
  • †Bryograptus –
    • †Bryograptus hunnebergensis – cf.
    • †Bryograptus sp. –
  • †Bucanella –
    • †Bucanella nana – cf.
    • †Bucanella nana – aff.
    • †Bucanella tripla – n. sp.
  • †Bucania –
    • †Bucania sp. –
  • †Buehleroceras –
    • †Buehleroceras arcuatum –
    • †Buehleroceras infundibulum –
    • †Buehleroceras sinuatum –
  • †Bumastus –
    • †Bumastus sp. –
  • †Burenoceras – ?
  • †Burenoceras –
    • †Burenoceras cornucopia – n. sp.
    • †Burenoceras muricoides – n. sp.
    • †Burenoceras phragmoceroides – n. sp.
    • †Burenoceras reticulatum –
    • †Burenoceras sp. –
  • †Buttsia –
    • †Buttsia australis – n. sp.
  • †Bythocypris –
    • †Bythocypris sp. –
  • †Calamograptus –
    • †Calamograptus sp. –
  • †Calathium –
    • †Calathium sp. –
  • †Calculites –
    • †Calculites stevensi –
  • †Callograptus –
    • †Callograptus kodymi –
    • †Callograptus rosovae –
    • †Callograptus salteri – cf.
    • †Callograptus sp. –
  • †Calvapilosa – n. gen.
  • †Calvapilosa –
    • †Calvapilosa kroegeri – n. sp.
    • †Calvapilosa kroegeri –
  • †Calvinella –
    • †Calvinella prethoparia –
    • †Calvinella sp. –
  • †Calycocoelia –
    • †Calycocoelia sp. –
  • †Calycraterion –
    • †Calycraterion samsonowiczi –
  • †Calymene –
    • †Calymene sp. –
  • †Calymenella – ?
    • †Calymenella zaplensis –
  • †Cambrooistodus –
    • †Cambrooistodus sp. –
  • †Cameroceras –
    • †Cameroceras sp. –
  • †Campbelloceras –
    • †Campbelloceras overmani – n. sp.
    • †Campbelloceras sp. –
  • †Carcassonnella –
    • †Carcassonnella courtessolei –
    • †Carcassonnella sp. –
  • †Carinocranium – n. gen.
    • †Carinocranium cariniferum – n. sp.
  • †Carlonites –
    • †Carlonites genacinaca –
  • †Carolinites –
    • †Carolinites genacinaca –
    • †Carolinites ichangensis – cf.
    • †Carolinites tasmaniensis – aff.
  • †Caryocaris –
    • †Caryocaris sp. –
  • †Caseoceras –
    • †Caseoceras obesum – n. sp.
  • †Cavernolites –
    • †Cavernolites senex –
  • †Ceratiocaris – ?
    • †Ceratiocaris sp. –
  • †Ceratopea – cf.
  • †Ceratopea –
    • †Ceratopea canadensis – n. sp.
    • †Ceratopea grandis – ?
    • †Ceratopea grandis –
    • †Ceratopea obtusa – n. sp.
    • †Ceratopea sinclairensis – n. sp.
    • †Ceratopea sinclairensis – cf.
    • †Ceratopea sinclairensis –
  • †Ceratopyge –
    • †Ceratopyge acicularis –
    • †Ceratopyge forficula –
    • †Ceratopyge forficuloides –
    • †Ceratopyge sp. –
  • †Changia –
    • †Changia sp. –
  • †Changjiangoceras –
    • †Changjiangoceras sp. –
  • †Chaniella – n. gen.
    • †Chaniella pascuali – n. sp.
  • †Chauvelicystis –
    • †Chauvelicystis sp. –
  • †Cheirocrinus –
    • †Cheirocrinus sp. –
  • †Cheirurus – ?
  • †Cheirurus –
    • †Cheirurus sp. –
  • †Chelodes –
    • †Chelodes depressus –
    • †Chelodes whitehousei – n. sp.
    • †Chelodes whitehousei –
  • †Chepuloceras – n. gen.
    • †Chepuloceras inelegans – n. sp.
  • †Chepultapecia –
    • †Chepultapecia leiosomella –
  • †Chinianaster – n. gen.
  • †Chinianaster –
    • †Chinianaster levyi – n. sp.
    • †Chinianaster sp. –
  • †Chinianocarpos –
    • †Chinianocarpos sp. –
  • †Chosenia –
    • †Chosenia laticephala –
  • †Chosonodina –
    • †Chosonodina sp. –
  • †Chuiliella – n. gen.
  • †Chuiliella – ?
  • †Chuiliella –
    • †Chuiliella elenae – n. sp.
    • †Chuiliella elenae –
    • †Chuiliella sp. –
  • †Chuliella –
    • †Chuliella elenae – n. sp.
  • †Chunxianoceras –
    • †Chunxianoceras sp. –
  • †Ciceragnostus –
    • †Ciceragnostus iruyensis –
    • †Ciceragnostus sp. –
  • †Cienagomya –
    • †Cienagomya bidentata –
  • †Clarkoceras – ?
  • †Clarkoceras –
    • †Clarkoceras luthei – aff.
    • †Clarkoceras rhomboidale –
    • †Clarkoceras ruedemanni –
    • †Clarkoceras sp. –
    • †Clarkoceras trapezoidale –
  • †Clavohamulus –
    • †Clavohamulus hintzei –
    • †Clavohamulus sp. –
  • †Clelandia – ?
  • †Clelandia –
    • †Clelandia albertensis –
    • †Clelandia aspina –
    • †Clelandia bispina –
    • †Clelandia parabola –
    • †Clelandia sp. –
    • †Clelandia texana –
    • †Clelandia utahensis – n. sp.
    • †Clelandia utahensis –
  • †Clisospira –
    • †Clisospira niuhsintaiensis –
  • †Clitendoceras –
    • †Clitendoceras saylesi –
    • †Clitendoceras sp. –
  • †Clonograptus – cf.
  • †Clonograptus –
    • †Clonograptus sp. –
    • †Clonograptus tenellus – cf.
    • †Clonograptus tenellus –
  • †Cochlioceras –
    • †Cochlioceras roemeri – aff.
  • †Codiacystis –
    • †Codiacystis sp. –
  • †Coelocerodontus –
    • †Coelocerodontus bicostatus –
  • †Colpocoryphe –
    • †Colpocoryphe sp. –
  • †Colpocoryphoides –
    • †Colpocoryphoides trapezoidalis –
  • †Comuodus –
    • †Comuodus sp. –
  • †Conocerina –
    • †Conocerina brevis – cf.
    • †Conocerina reducta –
    • †Conocerina sp. –
    • †Conocerina unguloides – n. sp.
  • †Conodia – n. gen.
  • †Conodia –
    • †Conodia acuminata – n. sp.
    • †Conodia levicosta – n. sp.
    • †Conodia levicosta –
  • †Conophrys –
    • †Conophrys minutula –
    • †Conophrys simbehensis –
    • †Conophrys simehensis –
  • †Conostichus – ?
    • †Conostichus sp. –
  • †Conotreta –
    • †Conotreta millardensis –
    • †Conotreta sp. –
  • †Contignatiospongia – n. gen.
    • †Contignatiospongia nevadensis – n. sp.
  • †Cordylodus – cf.
  • †Cordylodus –
    • †Cordylodus angulatus – cf.
    • †Cordylodus angulatus –
    • †Cordylodus caseyi –
    • †Cordylodus intermedius –
    • †Cordylodus lindstomi –
    • †Cordylodus lindstromi –
    • †Cordylodus oklahomensis –
    • †Cordylodus proavus –
    • †Cordylodus sp. –
  • †Coreanoceras –
    • †Coreanoceras sp. –
  • †Cornuodus –
  • †Corrugatagnostus –
    • †Corrugatagnostus sp. –
  • †Corynoides –
    • †Corynoides sp. –
  • †Cothodus – n. gen.
    • †Cothodus sp. –
  • †Cothurnocystis –
    • †Cothurnocystis sp. –
  • †Cotteroceras –
    • †Cotteroceras sp. –
  • †Coxiconchia –
    • †Coxiconchia babini – n. sp.
    • †Coxiconchia guiraudi –
    • †Coxiconchia sp. –
  • †Cristodus –
    • †Cristodus sp. – ?
  • †Crossochorda –
    • †Crossochorda sp. –
  • †Cruziana –
    • †Cruziana billingsi –
    • †Cruziana breadstoni –
    • †Cruziana problematica –
    • †Cruziana semiplicata –
    • †Cruziana sp. –
    • †Cruziana tortworthi –
  • †Ctenobolbina –
    • †Ctenobolbina sp. –
  • †Ctenodonta –
    • †Ctenodonta sp. –
  • †Cumberloceras –
    • †Cumberloceras sp. –
  • †Curiaspis –
    • †Curiaspis sp. –
  • †Curticia –
    • †Curticia sp. –
  • †Cyclocyclicus –
    • †Cyclocyclicus sp. –
  • †Cyclognastus –
    • †Cyclognastus sp. –
  • †Cyclognostus –
    • †Cyclognostus sp. –
  • †Cyclopyge – ?
  • †Cyclopyge –
    • †Cyclopyge latifrons – n. sp.
    • †Cyclopyge sp. –
  • †Cyclostomiceras –
    • †Cyclostomiceras sp. –
    • †Cyclostomiceras thorali –
  • †Cymatiogalea –
    • †Cymatiogalea sp. –
  • †Cypricardinia –
    • †Cypricardinia sp. –
  • †Cyptendoceras –
    • †Cyptendoceras sp. –
  • †Cyrtoceras – "
    • †Cyrtoceras kirkbyi – ?
    • †Cyrtoceras sp. –
  • †Cyrtodiscus –
    • †Cyrtodiscus sp. –
  • †Cyrtonellopsis – n. gen.
    • †Cyrtonellopsis huzzahensis – n. sp.
  • †Cyrtoniodus –
    • †Cyrtoniodus sp. –
  • †Cysticamara –
    • †Cysticamara sp. –
  • †Dactylocephalina –
    • †Dactylocephalina sp. –
  • †Dactylocephalus –
    • †Dactylocephalus latus – n. sp.
    • †Dactylocephalus latus – cf.
    • †Dactylocephalus latus –
    • †Dactylocephalus mehriae –
    • †Dactylocephalus sp. –
  • †Dactylotreta –
    • †Dactylotreta batkanensis –
  • †Dakeoceras – ?
  • †Dakeoceras –
    • †Dakeoceras champlainense – n. sp.
    • †Dakeoceras gracilis –
    • †Dakeoceras harrisi – n. sp.
    • †Dakeoceras mutabile – n. sp.
    • †Dakeoceras sp. –
  • †Dalmanella –
    • †Dalmanella sp. –
  • †Damghanampyx –
  • †Dasometopus –
    • †Dasometopus marginatus – n. sp.
  • †Dateroceras –
    • †Dateroceras sp. –
  • †Deanokephalus –
    • †Deanokephalus sp. –
  • †Degamella –
    • †Degamella famatinensis – n. sp.
  • †Deltacare –
    • †Deltacare prosops –
    • †Deltacare sp. –
  • †Dendrograptus –
    • †Dendrograptus sp. –
  • †Deshyolites –
    • †Deshyolites sp. –
  • †Desmograptus –
    • †Desmograptus sp. –
  • †Destombesiceras –
    • †Destombesiceras zagorense –
  • †Diaphelasma –
    • †Diaphelasma oklahomense – cf.
    • †Diaphelasma oklahomense –
    • †Diaphelasma sp. –
  • †Diceratocephalina –
    • †Diceratocephalina sp. –
  • †Diceratopyge –
    • †Diceratopyge sp. –
  • †Dichelepyge –
    • †Dichelepyge pascuali –
    • †Dichelepyge sp. –
  • †Dichograptus –
    • †Dichograptus sp. –
  • †Dictyonema –
    • †Dictyonema flabelliforme –
    • †Dictyonema pulchellum –
    • †Dictyonema sp. –
    • †Dictyonema sp. undet. 1 – informal
  • †Didymaulichnus –
    • †Didymaulichnus lyelli –
  • †Didymograptus –
    • †Didymograptus sp. –
  • †Diencobolus –
    • †Diencobolus sp. –
    • †Diencobolus subovalis –
  • †Dikelokephalina – ?
  • †Dikelokephalina –
    • †Dikelokephalina dicraeura –
    • †Dikelokephalina sp. –
  • †Dimeropygiella –
    • †Dimeropygiella caudanodosa – cf.
  • †Dimorphichnus –
    • †Dimorphichnus obliquus –
  • †Diphragmoceras – ?
    • †Diphragmoceras sp. –
  • †Diplichnites –
    • †Diplichnites sp. –
  • †Diplocraterion –
    • †Diplocraterion parallelum –
  • †Discoceras – ?
    • †Discoceras sp. –
  • †Disepta –
    • †Disepta sp. –
  • †Distacodus –
    • †Distacodus sp. –
  • †Distomodus –
    • †Distomodus kentuckyensis – aff.
    • †Distomodus kentuckyensis –
  • †Ditreta – ?
    • †Ditreta dividua –
  • †Dogeuloma –
    • †Dogeuloma sp. –
  • †Dolerasaphus – ?
  • †Dolerasaphus –
    • †Dolerasaphus laevis –
    • †Dolerasaphus sp. –
  • †Dolgeuloma –
    • †Dolgeuloma abunda –
    • †Dolgeuloma dolganensis –
  • †Dolgueloma –
    • †Dolgueloma sp. –
  • †Drepanodus –
    • †Drepanodus acutus –
    • †Drepanodus conulatus –
    • †Drepanodus cyranoicus –
    • †Drepanodus homocurvatus –
    • †Drepanodus lineatus – ex gr.
    • †Drepanodus sp. –
    • †Drepanodus subarcuatus –
  • †Drepanoistodus –
    • †Drepanoistodus amoenus – aff.
    • †Drepanoistodus sp. –
  • †Dubhglasina –
    • †Dubhglasina depressus –
  • †Dwightoceras –
    • †Dwightoceras dactyloides –
  • †Ecculiomphalus –
    • †Ecculiomphalus calciferus – n. sp.
    • †Ecculiomphalus priscus – n. sp.
    • †Ecculiomphalus sp. –
  • †Echidnina –
    • †Echidnina bengstoni – n. sp.
  • †Echinosphaerites –
    • †Echinosphaerites sp. –
  • †Ectenoceras –
    • †Ectenoceras chepultepecense –
    • †Ectenoceras compressum –
    • †Ectenoceras exile –
    • †Ectenoceras longum –
    • †Ectenoceras ruedemanni –
    • †Ectenoceras sp. –
    • †Ectenoceras subcurvatum –
  • †Ectenoglossa –
    • †Ectenoglossa sp. –
  • †Ectenolites –
    • †Ectenolites clelandi –
    • †Ectenolites curviseptatus –
    • †Ectenolites extensus –
    • †Ectenolites sinuatus –
    • †Ectenolites sp. –
  • †Ekaterodonta –
    • †Ekaterodonta courtessolei –
  • †Ekeraspis –
    • †Ekeraspis nevadensis –
    • †Ekeraspis sp. –
  • †Elkanaspis –
    • †Elkanaspis corrugata – cf.
    • †Elkanaspis corrugata –
  • †Ellesmeroceras – n. gen.
  • †Ellesmeroceras –
    • †Ellesmeroceras foerstei –
    • †Ellesmeroceras higdonense –
    • †Ellesmeroceras hotchkissi –
    • †Ellesmeroceras inbricatum –
    • †Ellesmeroceras indomitum –
    • †Ellesmeroceras luthei –
    • †Ellesmeroceras scheii – n. sp.
    • †Ellesmeroceras sp. –
    • †Ellesmeroceras thomasi –
    • †Ellesmeroceras winonicum –
  • †Ellesmeroceroides –
    • †Ellesmeroceroides sp. –
  • †Elliptoglossa –
    • †Elliptoglossa polonica – n. sp.
    • †Elliptoglossa sp. –
  • †Ellsworthoconus –
    • †Ellsworthoconus bridgei –
  • †Elyx – ?
    • †Elyx sp. –
  • †Endoceras –
    • †Endoceras primigenium –
    • †Endoceras sp. –
  • †Endocycloceras –
    • †Endocycloceras gracile – n. sp.
    • †Endocycloceras legorense –
    • †Endocycloceras perannulatum –
  • †Endorioceras – n. gen.
    • †Endorioceras rarum – n. sp.
  • †Eobucania – n. gen.
  • †Eobucania – ?
  • †Eobucania –
    • †Eobucania mexicana – n. sp.
    • †Eobucania mexicana –
    • †Eobucania pulchra – n. sp.
    • †Eobucania pulchra –
    • †Eobucania sp. –
    • †Eobucania subovatus – n. sp.
  • †Eoconodontus –
    • †Eoconodontus sp. –
  • †Eoconularia –
    • †Eoconularia sp. –
  • †Eoconulus –
    • †Eoconulus sp. –
  • †Eoduslia –
    • †Eoduslia sp. –
  • †Eoischyrinia –
    • †Eoischyrinia billingsi –
  • †Eoisotelus –
    • †Eoisotelus orientalis –
  • †Eoorthis – ?
  • †Eoorthis –
    • †Eoorthis sp. –
  • †Eopteria –
    • †Eopteria agustini – n. sp.
    • †Eopteria alta –
    • †Eopteria asiatica –
    • †Eopteria flora – n. sp.
    • †Eopteria struszi – n. sp.
    • †Eopteria struszi –
  • †Eopunctata –
    • †Eopunctata sp. –
  • †Eorobergia –
    • †Eorobergia sp. –
  • †Eorudolfoceras –
    • †Eorudolfoceras antiquum –
    • †Eorudolfoceras sp. –
  • †Eoscaphelasma –
    • †Eoscaphelasma sp. –
  • †Eosiphonotreta –
    • †Eosiphonotreta sp. –
  • †Eosotrematorthis –
    • †Eosotrematorthis sp. –
  • †Eostrophomena –
    • †Eostrophomena elegantula –
    • †Eostrophomena sp. –
  • †Eosyntrophopsis –
    • †Eosyntrophopsis sp. –
  • †Eotaihungshania –
    • †Eotaihungshania sp. –
  • †Epiphyton –
    • †Epiphyton sp. –
  • †Eremoceras – ?
  • †Eremoceras –
    • †Eremoceras expansum –
    • †Eremoceras multicameratum –
    • †Eremoceras teres –
  • †Eriaster – n. gen.
    • †Eriaster ibexensis – n. sp.
  • †Eroicaspira –
    • †Eroicaspira zelleri – n. sp.
    • †Eroicaspira zelleri –
  • †Escharendoceras –
    • †Escharendoceras sp. –
  • †Eucharodus –
    • †Eucharodus sp. –
  • †Euchasma –
    • †Euchasma caseyi – n. sp.
    • †Euchasma caseyi –
    • †Euchasma eopteriformis –
    • †Euchasma multistriata –
  • †Euconia – n. gen.
  • †Euconia – ?
  • †Euconia –
    • †Euconia conicus – cf.
    • †Euconia conicus –
    • †Euconia etna – n. sp.
    • †Euconia sinuata – n. sp.
    • †Euconia sp. –
    • †Euconia umbilicata – cf.
    • †Euconia umbilicata – ?
    • †Euconia umbilicata –
  • †Euloma – aff.
  • †Euloma – "
  • †Euloma –
    • †Euloma cordilleri –
    • †Euloma ornatum –
    • †Euloma sdzuyi – aff.
    • †Euloma sp. –
  • †Eulomella – n. gen.
    • †Eulomella mckayensis – n. sp.
  • †Eulomina –
    • †Eulomina sp. –
  • †Eunoa –
    • †Eunoa sp. –
  • †Euomphalopsis –
    • †Euomphalopsis involuta –
  • †Euorthisina – ?
    • †Euorthisina nazarenensis – n. sp.
  • †Eupoikilofusa –
    • †Eupoikilofusa sp. –
  • †Eurekia –
    • †Eurekia apopsis – cf.
    • †Eurekia ulrichi –
  • †Eurytreta – ?
  • †Eurytreta –
    • †Eurytreta ahmadii –
    • †Eurytreta bisecta – cf.
    • †Eurytreta campaniformis – cf.
    • †Eurytreta fillmorensis – n. sp.
    • †Eurytreta fillmorensis –
    • †Eurytreta minor –
    • †Eurytreta sabrinae –
    • †Eurytreta sp. –
  • †Exoclitendoceras – n. gen.
    • †Exoclitendoceras rochdalense – n. sp.
  • †Expellobolus –
    • †Expellobolus sp. –
  • †Falanaspis –
    • †Falanaspis aliena –
  • †Felinoceras –
    • †Felinoceras constrictum –
  • †Ferrobolus –
    • †Ferrobolus sp. –
  • †Finkelnburgia – ?
  • †Finkelnburgia –
    • †Finkelnburgia arbucklensiformis –
    • †Finkelnburgia bridgei – cf.
    • †Finkelnburgia buttsi –
    • †Finkelnburgia macleodi – n. sp.
    • †Finkelnburgia scenidioides – cf.
    • †Finkelnburgia sp. –
    • †Finkelnburgia sp. 1 – informal
    • †Finkelnburgia sp. 2 – informal
  • †Flectihystricurus –
    • †Flectihystricurus acumennasus – n. sp.
    • †Flectihystricurus flectimembrus – n. sp.
    • †Flectihystricurus flectimembrus –
  • †Furculosus –
    • †Furculosus carpathicus –
  • †Furnishina –
    • †Furnishina sp. –
  • †Gallagnostus –
    • †Gallagnostus bolivanus –
    • †Gallagnostus bolivianus –
    • †Gallagnostus sp. –
  • †Galliaecystis –
    • †Galliaecystis sp. –
  • †Gallograptus –
    • †Gallograptus sp. –
  • †Gasconadeoconus –
    • †Gasconadeoconus ponderosa – n. sp.
    • †Gasconadeoconus waynesvillensis – n. sp.
    • †Gasconadeoconus waynesvillensis –
  • †Gasconadia –
    • †Gasconadia floridensis – n. sp.
    • †Gasconadia mohawkensis – n. sp.
    • †Gasconadia putilla –
    • †Gasconadia sp. –
  • †Genalaticurus – ?
  • †Genalaticurus –
    • †Genalaticurus genalatus – n. sp.
    • †Genalaticurus genalatus – cf.
    • †Genalaticurus genalatus – aff.
    • †Genalaticurus genalatus –
    • †Genalaticurus sp. 1 – informal
  • †Geragnostella –
    • †Geragnostella sp. –
  • †Geragnostus – n. gen.
  • †Geragnostus – ?
  • †Geragnostus –
    • †Geragnostus callavei –
    • †Geragnostus callaveiformis –
    • †Geragnostus calviformis –
    • †Geragnostus crassus – cf.
    • †Geragnostus crassus –
    • †Geragnostus hoeki –
    • †Geragnostus intermidius –
    • †Geragnostus licaonicus –
    • †Geragnostus maurii –
    • †Geragnostus mesossii –
    • †Geragnostus micropeltis –
    • †Geragnostus nesossii –
    • †Geragnostus neumanni –
    • †Geragnostus sidenbladhi – ?
    • †Geragnostus sidenbladhi –
    • †Geragnostus sp. –
    • †Geragnostus tilcuyensis –
    • †Geragnostus vilonii –
    • †Geragnostus yangtzeensis – cf.
  • †Gerangnostus – n. gen.
    • †Gerangnostus ambiguus – n. sp.
  • †Ghavidelia –
    • †Ghavidelia damghanensis –
  • †Girvanella –
    • †Girvanella sp. –
  • †Glabretina – n. gen.
    • †Glabretina andrewsi – n. sp.
  • †Glaphurus –
    • †Glaphurus sp. –
  • †Glossograptus –
    • †Glossograptus sp. –
  • †Glyptoconus –
    • †Glyptoconus sp. –
  • †Glyptosphaeronites –
    • †Glyptosphaeronites sp. –
  • †Glyptotrophia –
    • †Glyptotrophia sp. –
  • †Gog –
    • †Gog sp. –
  • †Gondwanorthis –
    • †Gondwanorthis bastamensis –
    • †Gondwanorthis calderensis – n. sp.
    • †Gondwanorthis calderensis –
  • †Goniophorina –
    • †Goniophorina tenuicostata – cf.
  • †Goniophrys –
    • †Goniophrys prima – n. sp.
    • †Goniophrys prima –
  • †Goniosphaeridium –
    • †Goniosphaeridium sp. –
  • †Gonioteloides –
    • †Gonioteloides monoceros –
  • †Gorbyoceras –
    • †Gorbyoceras geronticum – cf.
  • †Groomodiscus –
    • †Groomodiscus calcifer – n. sp.
  • †Gymnagnostus – ?
  • †Gymnagnostus –
    • †Gymnagnostus congros – n. sp.
    • †Gymnagnostus mexicanus – n. sp.
    • †Gymnagnostus sp. –
  • †Gyrolithes –
    • †Gyrolithes saxonicus –
  • †Hallograptus –
    • †Hallograptus sp. –
  • †Hapalopleura –
    • †Hapalopleura clavata –
    • †Hapalopleura longicornis – aff.
    • †Hapalopleura longirachis – n. sp.
    • †Hapalopleura sp. –
  • †Haplograptus –
    • †Haplograptus sp. –
  • †Haplopleura –
    • †Haplopleura longicornis –
  • †Hardyoides –
    • †Hardyoides sp. –
  • †Harpides –
    • †Harpides neogaeus –
    • †Harpides rugosus –
    • †Harpides sp. –
  • †Hartzina –
    • †Hartzina sp. –
  • †Helminthopsis –
    • †Helminthopsis abelli –
    • †Helminthopsis hieroglyphica –
    • †Helminthopsis tenuis –
  • †Hemibarrandia –
    • †Hemibarrandia sp. –
  • †Hemipronites –
    • †Hemipronites sp. –
  • †Hemithecella – n. gen.
  • †Hemithecella –
    • †Hemithecella abrupta –
    • †Hemithecella expansa – n. sp.
    • †Hemithecella expansa –
    • †Hemithecella quinquelites – n. sp.
  • †Hermannograptus –
    • †Hermannograptus sp. –
  • †Herrmanograptus –
    • †Herrmanograptus sp. –
  • †Hertzina – ?
    • †Hertzina sp. –
  • †Hesperonomia –
    • †Hesperonomia sp. –
  • †Heteronema –
    • †Heteronema priscum –
    • †Heteronema sp. –
  • †Hexagonocyclicus –
    • †Hexagonocyclicus sp. –
  • †Highgatella – ?
  • †Highgatella –
    • †Highgatella cordilleri –
    • †Highgatella sp. –
  • †Hillyardina – ?
  • †Hillyardina –
    • †Hillyardina levis – n. sp.
    • †Hillyardina levis –
    • †Hillyardina marginauctum – n. sp.
    • †Hillyardina marginauctum –
    • †Hillyardina minuspustulata – n. sp.
    • †Hillyardina minuspustulata –
    • †Hillyardina semicylindrica – n. sp.
    • †Hillyardina semicylindrica – cf.
    • †Hillyardina sp. –
    • †Hillyardina sp. A – informal
  • †Hintzecurus –
    • †Hintzecurus paragenalatus – n. sp.
    • †Hintzecurus paragenalatus –
    • †Hintzecurus sp. 2 – informal
  • †Hirstodontus –
    • †Hirstodontus sp. –
  • †Hirsutodontus –
    • †Hirsutodontus hirsutus –
    • †Hirsutodontus sp. –
  • †Holopea – ?
    • †Holopea sp. –
  • †Holubaspis – ?
  • †Holubaspis –
    • †Holubaspis perneri –
    • †Holubaspis sp. –
  • †Homagnostoides –
    • †Homagnostoides sp. –
  • †Homagnostus –
    • †Homagnostus sp. –
  • †Homalopteon – cf.
    • †Homalopteon sp. –
  • †Hopeiceras –
    • †Hopeiceras sp. –
  • †Hopeioceras –
    • †Hopeioceras sp. –
  • †Hormotoma – ?
  • †Hormotoma –
    • †Hormotoma bilineata – n. sp.
    • †Hormotoma confusa – n. sp.
    • †Hormotoma gracilens – n. sp.
    • †Hormotoma gracilis – cf.
  • †Hudsonospongia –
    • †Hudsonospongia sp. –
  • †Huenella –
    • †Huenella wanwanensis –
  • †Hungaia –
    • †Hungaia magnifica –
  • †Hupeioceras –
    • †Hupeioceras sp. –
  • †Hyodus –
    • †Hyodus sp. –
  • †Hyolithes –
    • †Hyolithes sp. –
  • †Hypeloconus –
    • †Hypeloconus recurvus –
  • †Hyperbolochilus – ?
  • †Hyperbolochilus –
    • †Hyperbolochilus expansus – cf.
    • †Hyperbolochilus expansus –
    • †Hyperbolochilus expanus – cf.
    • †Hyperbolochilus sp. –
  • †Hypermecaspis –
    • †Hypermecaspis inflecta –
    • †Hypermecaspis kolouros –
    • †Hypermecaspis rugosa –
    • †Hypermecaspis sp. –
  • †Hyperobolus –
    • †Hyperobolus feistmanteli –
  • †Hypothetica –
    • †Hypothetica rawi – n. sp.
  • †Hypseloconus –
    • †Hypseloconus bessemerense – cf.
    • †Hypseloconus compressus –
    • †Hypseloconus ozarkensis –
    • †Hypseloconus recurvus –
    • †Hypseloconus sp. –
  • †Hysterolenus –
    • †Hysterolenus sp. –
  • †Hystricurus – cf.
  • †Hystricurus – ?
  • †Hystricurus –
    • †Hystricurus conicus – cf.
    • †Hystricurus conicus –
    • †Hystricurus contractus – n. sp.
    • †Hystricurus contractus –
    • †Hystricurus crassilimbatus –
    • †Hystricurus deflectus – n. sp.
    • †Hystricurus deflectus –
    • †Hystricurus elevatus –
    • †Hystricurus ellipticus –
    • †Hystricurus oculilunatus – n. sp.
    • †Hystricurus oculilunatus –
    • †Hystricurus oculinatus –
    • †Hystricurus penchiensis –
    • †Hystricurus platypleurus –
    • †Hystricurus robusta –
    • †Hystricurus robustus – n. sp.
    • †Hystricurus robustus – aff.
    • †Hystricurus robustus –
    • †Hystricurus sp. –
    • †Hystricurus sp. 1 – informal
    • †Hystricurus sp. A – informal
    • †Hystricurus sp. B – informal
    • †Hystricurus sp. B – cf.
    • †Hystricurus sp. C – informal
    • †Hystricurus sp. D – informal
    • †Hystricurus sp. E – informal
    • †Hystricurus sp. G – informal
    • †Hystricurus sp. H – informal
    • †Hystricurus sp.A – cf.
    • †Hystricurus sulcatus – n. sp.
  • †Iapetognathus –
    • †Iapetognathus sprakersi –
  • †Ibexicurus –
    • †Ibexicurus parsonsi – n. sp.
  • †Idiomesus –
    • †Idiomesus intermedius –
    • †Idiomesus tantillus – cf.
  • †Ijacephalus –
    • †Ijacephalus sp. –
  • †Illaenopsis – ?
  • †Illaenopsis –
    • †Illaenopsis sp. – n. sp.
    • †Illaenopsis sp. –
    • †Illaenopsis stenorhachis –
  • †Illaenus –
    • †Illaenus hinomotoensis – cf.
    • †Illaenus hinomotoensis –
    • †Illaenus sp. –
  • †Imbricatia –
    • †Imbricatia sp. –
  • †Indiligens –
    • †Indiligens sp. –
  • †Inocaulis –
    • †Inocaulis sp. –
  • †Intihuarella – n. gen.
    • †Intihuarella simplicidentata – n. sp.
  • †Iphidella –
    • †Iphidella sp. –
  • †Ischyrotoma –
    • †Ischyrotoma eos – cf.
  • †Isochyrotoma –
    • †Isochyrotoma eos – cf.
  • †Isoteloides –
    • †Isoteloides canalis –
    • †Isoteloides saxosimontis – n. sp.
    • †Isoteloides saxosimontis –
    • †Isoteloides sp. –
  • †Isphella –
    • †Isphella platycephala –
  • †Jeffersonia –
    • †Jeffersonia bridgei – n. sp.
  • †Jianghania – n. gen.
    • †Jianghania yichangensis – n. sp.
  • †Jiia –
    • †Jiia sp. –
  • †Jivinella –
    • †Jivinella sp. –
  • †Jixicephallus –
    • †Jixicephallus sp. –
  • †Jujuyaspis –
    • †Jujuyaspis borealis –
    • †Jujuyaspis keideli –
    • †Jujuyaspis sp. –
  • †Kailuanoceras –
    • †Kailuanoceras sp. –
  • †Kainella –
    • †Kainella billingsi –
    • †Kainella conica –
    • †Kainella flagricauda –
    • †Kainella kindlei –
    • †Kainella meridionalis – cf.
    • †Kainella meridionalis –
    • †Kainella sp. –
  • †Kainellidae – ?
    • †Kainellidae sp. –
  • †Kaninia – ?
    • †Kaninia quadrata –
    • †Kaninia sp. –
  • †Kayseraspis – ?
  • †Kayseraspis –
    • †Kayseraspis asaphelloides –
    • †Kayseraspis sp. –
    • †Kayseraspis spicula –
  • †Keraiaceras – ?
    • †Keraiaceras percostatum –
  • †Keriaceras – ?
    • †Keriaceras percostatum –
  • †Ketyna –
    • †Ketyna sp. –
  • †Kiaerograptus – ?
  • †Kiaerograptus –
    • †Kiaerograptus sp. –
  • †Kimopegma –
    • †Kimopegma jonesi –
  • †Kingstonia –
    • †Kingstonia convexa –
    • †Kingstonia humilis –
    • †Kingstonia semicircularis –
  • †Kirengella –
    • †Kirengella alta – n. sp.
    • †Kirengella expansus – n. sp.
    • †Kirengella expansus –
    • †Kirengella kultavasaensis –
    • †Kirengella oregonensis – n. sp.
  • †Kirengina –
    • †Kirengina sp. –
  • †Kobayashia –
    • †Kobayashia douglasensis – cf.
  • †Kodymaspis –
    • †Kodymaspis sp. –
  • †Koldinioidia –
    • †Koldinioidia sp. –
  • †Kolihium –
    • †Kolihium sp. –
  • †Kometia – ?
    • †Kometia sp. –
  • †Koraipsis –
    • †Koraipsis shansiensis –
  • †Kvania –
    • †Kvania azulpampensis – n. sp.
    • †Kvania azulpampensis –
    • †Kvania lariensis – n. sp.
    • †Kvania lariensis –
    • †Kvania mergli – n. sp.
  • †Lachnostoma –
    • †Lachnostoma latucelsum –
  • †Lacunites –
    • †Lacunites sp. –
  • †Laishuia –
    • †Laishuia sp. –
  • †Laishuiceras –
    • †Laishuiceras sp. –
  • †Lampazarorthis –
    • †Lampazarorthis bifurcata –
    • †Lampazarorthis brachymyaria – n. sp.
    • †Lampazarorthis brachymyaria –
  • †Larifugula –
    • †Larifugula leonensis –
  • †Larispongia – n. gen.
    • †Larispongia magdalenae – n. sp.
  • †Laurentoscandodus – aff.
  • †Laurentoscandodus –
    • †Laurentoscandodus sp. –
    • †Laurentoscandodus triangularis –
    • †Laurentoscandodus triangulatus –
  • †Lavadamia –
    • †Lavadamia joplinae – n. sp.
  • †Lebetoceras –
    • †Lebetoceras sp. –
  • †Lebobienvillia –
    • †Lebobienvillia sp. –
  • †Lecanospira –
    • †Lecanospira compacta –
    • †Lecanospira nerine –
    • †Lecanospira perplana –
    • †Lecanospira salteri – cf.
    • †Lecanospira sanctisabae –
    • †Lecanospira soluta – n. sp.
    • †Lecanospira sp. –
    • †Lecanospira sp. undet. – informal
  • †Leiagnostus – ?
  • †Leiagnostus –
    • †Leiagnostus perinflatus –
    • †Leiagnostus sp. –
    • †Leiagnostus turgidulus –
  • †Leimitzia –
    • †Leimitzia sp. –
  • †Leiobienvillia – n. gen.
  • †Leiobienvillia –
    • †Leiobienvillia laevigata – n. sp.
    • †Leiobienvillia terranovica – n. sp.
  • †Leiocorphyge – ?
    • †Leiocorphyge lobata – n. sp.
  • †Leiocoryphe – ?
    • †Leiocoryphe lobata –
  • †Leiosphaeridia –
    • †Leiosphaeridia sp. –
  • †Leiostegium –
    • †Leiostegium ceratopygoides –
    • †Leiostegium glabrum –
    • †Leiostegium goodwinensis –
    • †Leiostegium manitouense – cf.
    • †Leiostegium manitouense –
    • †Leiostegium manitouensis –
    • †Leiostegium sp. –
  • †Leperditella –
    • †Leperditella sp. –
  • †Leptembolon –
    • †Leptembolon lingulaeformis – cf.
    • †Leptembolon sp. –
  • †Leptobenthos – n. gen.
    • †Leptobenthos roartei – n. sp.
  • †Leptocyrtoceras –
    • †Leptocyrtoceras virginianum –
  • †Leptoplastides – ?
  • †Leptoplastides –
    • †Leptoplastides mariana –
    • †Leptoplastides marianus –
    • †Leptoplastides salteri –
    • †Leptoplastides sinensis –
    • †Leptoplastides sp. –
  • †Lesserorthis – n. gen.
    • †Lesserorthis havliceki – n. sp.
  • †Lesueurilla –
    • †Lesueurilla sp. –
  • †Leurostega –
    • †Leurostega aphelix – n. sp.
  • †Levisaspis –
    • †Levisaspis convexus –
    • †Levisaspis sp. –
  • †Levisoceras –
    • †Levisoceras contractum – n. sp.
    • †Levisoceras ellipticum –
    • †Levisoceras instabile –
    • †Levisoceras sp. –
    • †Levisoceras sp. 1 – informal
    • †Levisoceras sp. 2 – informal
    • †Levisoceras transitum –
  • †Lianghelouceras –
    • †Lianghelouceras sp. –
  • †Liangshanella – ?
    • †Liangshanella sp. –
  • †Lichakephalus –
    • †Lichakephalus sp. –
  • †Lichenaria –
    • †Lichenaria sp. –
  • †Licnocephala – ?
    • †Licnocephala sp. –
  • †Lingula –
    • †Lingula sp. –
  • †Lingulella – ?
  • †Lingulella –
    • †Lingulella ibicus – cf.
    • †Lingulella ibicus –
    • †Lingulella pogonipensis – cf.
    • †Lingulella sp. –
    • †Lingulella sp. undet. – informal
  • †Lingulepis –
    • †Lingulepis sp. –
    • †Lingulepis tenuilineata – n. sp.
    • †Lingulepis tenuilineata –
  • †Lingulobolus –
    • †Lingulobolus sp. –
  • †Lingulocystis –
    • †Lingulocystis sp. –
  • †Lipanella – n. gen.
    • †Lipanella purmamarcensis – n. sp.
  • †Lipanorthis – n. gen.
  • †Lipanorthis –
    • †Lipanorthis andinus – n. sp.
    • †Lipanorthis andinus –
    • †Lipanorthis santalaurae – n. sp.
    • †Lipanorthis santalaurae –
  • †Litagnostus –
    • †Litagnostus meniscus –
    • †Litagnostus sp. –
  • †Llanoceras – n. gen.
    • †Llanoceras gracile – n. sp.
  • †Lloydia – cf.
  • †Lloydia –
    • †Lloydia douglasi –
    • †Lloydia formosa –
    • †Lloydia incomperta –
    • †Lloydia manitouensis – cf.
    • †Lloydia sp. – informal
    • †Lloydia sp. –
  • †Lobendoceras –
    • †Lobendoceras undulatum –
  • †Lockeia –
    • †Lockeia avalonensis –
    • †Lockeia siliquaria –
  • †Loganopeltoides –
    • †Loganopeltoides kindlei –
  • †Lohanpoensis –
    • †Lohanpoensis sp. –
  • †Lohanpopsis –
    • †Lohanpopsis sp. –
  • †Loparella –
    • †Loparella sp. –
  • †Lopeuloma –
    • †Lopeuloma sp. –
  • †Lophospira –
    • †Lophospira calcifera – n. sp.
  • †Loshanella –
    • †Loshanella sp. –
  • †Lotagnostus –
    • †Lotagnostus americanus –
    • †Lotagnostus hedini –
  • †Loxodus –
    • †Loxodus bransoni –
    • †Loxodus sp. –
  • †Lunacrania –
    • †Lunacrania spicata –
  • †Machairagnostus –
    • †Machairagnostus sp. –
    • †Machairagnostus tmetus –
  • †Macluritella – n. gen.
  • †Macluritella – "
  • †Macluritella – ?
  • †Macluritella –
    • †Macluritella carinifera – n. sp.
    • †Macluritella gyroceras –
    • †Macluritella imperfecta – n. sp.
    • †Macluritella mediosulcata – n. sp.
    • †Macluritella multiseptarius – n. sp.
    • †Macluritella multiseptarius – ?
    • †Macluritella multiseptarius –
    • †Macluritella ornata – n. sp.
    • †Macluritella rotunda – n. sp.
    • †Macluritella rotunda –
    • †Macluritella sp. –
    • †Macluritella stantoni – aff.
    • †Macluritella stantoni –
    • †Macluritella uniangulata –
    • †Macluritella wanwanensis –
  • †Maclurites –
    • †Maclurites sp. –
  • †Macrocystella – ?
  • †Macrocystella –
    • †Macrocystella bohemica –
    • †Macrocystella sp. –
  • †Macropyge – ?
  • †Macropyge –
    • †Macropyge sica – aff.
    • †Macropyge sp. –
  • †Mamatia –
    • †Mamatia retracta –
  • †Manchuroceras –
    • †Manchuroceras sp. –
  • †Mansiella – n. gen.
  • †Mansiella –
    • †Mansiella mansica – n. sp.
    • †Mansiella sp. –
  • †Mastiograptus –
    • †Mastiograptus sp. –
  • †Matherella –
    • †Matherella walcotti –
  • †Matthevia –
    • †Matthevia erecta – n. sp.
    • †Matthevia walcotti – cf.
  • †Mccluskiceras – n. gen.
    • †Mccluskiceras comstockense – n. sp.
  • †Mcqueenoceras –
    • †Mcqueenoceras jeffersonense – aff.
  • †Megalaspides –
    • †Megalaspides kolutensis –
    • †Megalaspides winsnesi – n. sp.
    • †Megalaspides winsnesi –
  • †Megastylia –
    • †Megastylia sp. –
  • †Megistaspis –
    • †Megistaspis sp. –
  • †Mekynophrys –
    • †Mekynophrys nanna –
  • †Menoparia –
    • †Menoparia elegans – n. sp.
    • †Menoparia elegans –
  • †Metabaltoceras –
    • †Metabaltoceras minutum – n. sp.
  • †Metabowmania –
    • †Metabowmania braggi – n. sp.
    • †Metabowmania latilimbata – cf.
    • †Metabowmania latilimbata –
    • †Metabowmania morgani –
    • †Metabowmania sp. –
  • †Metapilekia – ?
  • †Metapilekia –
    • †Metapilekia bilirata –
  • †Metorthis –
    • †Metorthis sp. –
  • †Michelinoceras –
    • †Michelinoceras sp. –
  • †Micragnostus –
    • †Micragnostus chiushuensis –
    • †Micragnostus curvata – n. sp.
    • †Micragnostus intermedius –
    • †Micragnostus sp. –
  • †Micrhystridium –
    • †Micrhystridium sp. –
  • †Microbaltoceras – n. gen.
  • †Microbaltoceras –
    • †Microbaltoceras minore – n. sp.
    • †Microbaltoceras sp. –
  • †Millardicurus –
    • †Millardicurus armatus – n. sp.
    • †Millardicurus armatus –
    • †Millardicurus housensis – n. sp.
    • †Millardicurus millardensis –
    • †Millardicurus nudus – n. sp.
    • †Millardicurus paramillardensis – n. sp.
    • †Millardicurus sp. A – informal
  • †Mimocystites –
    • †Mimocystites sp. –
  • †Mimospira –
    • †Mimospira sp. –
  • †Minervaecystis –
    • †Minervaecystis sp. –
  • †Missiquoia –
    • †Missiquoia enigmatica –
  • †Missisquoia –
    • †Missisquoia sp. –
    • †Missisquoia typicalis – ?
    • †Missisquoia typicalis –
  • †Modiolopsis –
    • †Modiolopsis sp. –
  • †Monocostodus –
    • †Monocostodus servierensis –
    • †Monocostodus sp. –
  • †Monocraterion –
    • †Monocraterion tentaculatum –
  • †Monogonoceras –
    • †Monogonoceras alabamense –
    • †Monogonoceras magnisiphonatum –
    • †Monogonoceras sp. –
    • †Monogonoceras subrectum –
  • †Monomorphichnus –
    • †Monomorphichnus intersectus –
    • †Monomorphichnus lineatus –
    • †Monomorphichnus mulitilineatus –
  • †Multicameroceras –
    • †Multicameroceras cylindricum –
  • †Muriceras – n. gen.
  • †Muriceras – ?
  • †Muriceras –
    • †Muriceras anomalum – n. sp.
    • †Muriceras curviseptatum – n. sp.
    • †Muriceras gracile – n. sp.
    • †Muriceras hebetum – n. sp.
    • †Muriceras hebetum – cf.
    • †Muriceras micromurus – n. sp.
    • †Muriceras moderatum – n. sp.
    • †Muriceras murus – n. sp.
    • †Muriceras obscurum – n. sp.
    • †Muriceras obscurum –
    • †Muriceras sp. –
  • †Myinda – ?
    • †Myinda sp. –
  • †Myindella –
    • †Myindella sp. –
  • †Myoplusia –
    • †Myoplusia sp. –
  • †Nannopeltis –
    • †Nannopeltis modesta –
    • †Nannopeltis sp. –
  • †Nanopsis –
    • †Nanopsis nanella –
  • †Nanorthis – ?
  • †Nanorthis –
    • †Nanorthis hamburgensis – cf.
    • †Nanorthis hamburgensis –
    • †Nanorthis purmamarcaensis – n. sp.
    • †Nanorthis purmamarcaensis –
    • †Nanorthis putilla –
    • †Nanorthis shoriensis –
    • †Nanorthis sp. –
  • †Nekhorosheviella –
    • †Nekhorosheviella nodulifera – n. sp.
    • †Nekhorosheviella semisphaerica – n. sp.
    • †Nekhorosheviella sp. –
  • †Neoagnostus –
    • †Neoagnostus aspidoides –
    • †Neoagnostus binodosus –
    • †Neoagnostus sp. –
  • †Neoeburoceras –
    • †Neoeburoceras sp. –
  • †Neseuretus –
    • †Neseuretus ghavideli – n. sp.
    • †Neseuretus sp. –
  • †Nileus –
    • †Nileus exarmatus – cf.
    • †Nileus limbatus –
  • †Niobe –
    • †Niobe insignis –
    • †Niobe sp. –
    • †Niobe spp. –
  • †Niobella – ?
  • †Niobella –
    • †Niobella obsoleta –
    • †Niobella sp. –
  • †Niobina –
    • †Niobina davidis –
    • †Niobina sp. –
    • †Niobina taurina –
  • †Noblella –
    • †Noblella tremadociensis – n. sp.
  • †Noradonta –
    • †Noradonta sp. –
  • †Norinia –
    • †Norinia sp. –
  • †Nortite –
    • †Nortite sp. –
  • †Notaiella –
    • †Notaiella sp. –
  • †Nothorthis –
    • †Nothorthis asiatic –
    • †Nothorthis marginata – n. sp.
    • †Nothorthis marginata –
  • †Notopeltis –
    • †Notopeltis orthometopa –
    • †Notopeltis orthometopoa –
    • †Notopeltis sp. –
  • †Notorthisina –
    • †Notorthisina musculosa –
    • †Notorthisina notoconcha – n. sp.
  • †Novakella –
    • †Novakella sp. –
  • †Nuculites –
    • †Nuculites sp. –
  • †Nuia –
    • †Nuia sp. –
  • †Nyaya –
    • †Nyaya grata – n. sp.
    • †Nyaya nyaensis – aff.
    • †Nyaya nyaensis –
    • †Nyaya sp. –
  • †Oaxaquiatreta –
    • †Oaxaquiatreta sp. –
  • †Obolus –
    • †Obolus sp. –
  • †Ocnerorthis –
    • †Ocnerorthis sp. –
  • †Oderoceras –
    • †Oderoceras sp. –
  • †Ogygites –
    • †Ogygites yunnanensis –
  • †Oistodus –
    • †Oistodus inequalis – cf.
    • †Oistodus sp. –
  • †Oligorthis –
    • †Oligorthis sp. –
  • †Omuliovia –
    • †Omuliovia granosa –
  • †Onchonotus –
    • †Onchonotus sp. –
  • †Oneotoceras –
    • †Oneotoceras sp. –
  • †Oneotodus – "
  • †Oneotodus – ?
  • †Oneotodus –
    • †Oneotodus cavus –
    • †Oneotodus datsonensis –
    • †Oneotodus erectus – aff.
    • †Oneotodus erectus –
    • †Oneotodus gracilis – aff.
    • †Oneotodus gracilis –
    • †Oneotodus simplex –
    • †Oneotodus sp. –
    • †Oneotodus tenuis –
    • †Oneotodus variabilis –
  • †Onychopyge –
    • †Onychopyge argentina –
    • †Onychopyge harringtoni – n. sp.
    • †Onychopyge longispina –
    • †Onychopyge plagiacantha –
    • †Onychopyge riojana –
    • †Onychopyge sculptura – n. sp.
    • †Onychopyge sp. –
  • †Ophileta – n. gen.
  • †Ophileta – cf.
  • †Ophileta –
    • †Ophileta complanata – cf.
    • †Ophileta complanata –
    • †Ophileta discus – n. sp.
    • †Ophileta polygyratus – n. sp.
    • †Ophileta polygyratus –
    • †Ophileta rotuliformis –
    • †Ophileta sp. –
    • †Ophileta supraplana –
  • †Ophiograptus –
    • †Ophiograptus inexpectans –
  • †Orbiramus – n. gen.
  • †Orbiramus –
    • †Orbiramus minus – n. sp.
    • †Orbiramus normalis – n. sp.
    • †Orbiramus normalis –
    • †Orbiramus ovalis – n. sp.
    • †Orbiramus ovalis –
    • †Orbiramus sp. –
  • †Orbithele –
    • †Orbithele ceratopygarum –
    • †Orbithele sp. –
  • †Orometopus –
    • †Orometopus elatifrons –
    • †Orometopus notatifrons –
    • †Orometopus primigenius –
    • †Orometopus pyrifrons –
    • †Orometopus sp. –
  • †Orthambonites –
    • †Orthambonites calligramma – cf.
    • †Orthambonites sp. –
  • †Orthidium –
    • †Orthidium prominens – n. sp.
    • †Orthidium prominens –
  • †Orthis –
    • †Orthis sp. –
  • †Orthisocrania –
    • †Orthisocrania sp. –
  • †Orthosphaeridium –
    • †Orthosphaeridium sp. –
  • †Orthotheca –
    • †Orthotheca sp. –
  • †Ottenbyella – ?
  • †Ottenbyella –
    • †Ottenbyella ibexiana – n. sp.
    • †Ottenbyella ibexiana –
    • †Ottenbyella sp. –
    • †Ottenbyella sp. B – informal
  • †Ozarkina –
    • †Ozarkina sp. –
    • †Ozarkina typica –
  • †Ozarkispira –
    • †Ozarkispira subelevata – n. sp.
    • †Ozarkispira subelevata –
  • †Ozarkoconus – n. gen.
    • †Ozarkoconus prearcuatus – n. sp.
  • †Pachendoceras –
    • †Pachendoceras brevicameratum – n. sp.
    • †Pachendoceras parvum –
  • †Pachycranium – ?
  • †Pachycranium –
    • †Pachycranium faciclunis – n. sp.
    • †Pachycranium faciclunis –
    • †Pachycranium sp. –
  • †Paenebeltella –
    • †Paenebeltella convexa –
    • †Paenebeltella sp. –
    • †Paenebeltella vultulata – n. sp.
    • †Paenebeltella vultulata –
  • †Pagometopus – n. gen.
  • †Pagometopus –
    • †Pagometopus gibbus – n. sp.
    • †Pagometopus gibbus –
  • †Palaeacmaea –
    • †Palaeacmaea expansa – n. sp.
  • †Palaeobolus –
    • †Palaeobolus sp. –
  • †Palaeoneilo –
    • †Palaeoneilo sp. –
    • †Palaeoneilo thorali –
  • †Palaeophycus –
    • †Palaeophycus heberti –
    • †Palaeophycus tubularis –
  • †Palaeosaccus –
    • †Palaeosaccus sp. –
  • †Palaeosphaeronites – ?
    • †Palaeosphaeronites sp. –
  • †Palaeostrophia –
    • †Palaeostrophia sp. –
  • †Paldiskia – ?
  • †Paldiskia –
    • †Paldiskia sp. –
  • †Paleosphaeronites –
    • †Paleosphaeronites sp. –
  • †Palquiella –
    • †Palquiella sp. –
  • †Palt –
    • †Palt sp. –
  • †Paltodus – ?
  • †Paltodus –
    • †Paltodus deltifer –
    • †Paltodus sp. –
    • †Paltodus spurius –
    • †Paltodus subequalis – cf.
  • †Panorolina –
    • †Panorolina kondomiensis – cf.
  • †Parabathycheilus –
    • †Parabathycheilus gallicus – cf.
  • †Parabellefontia –
    • †Parabellefontia concinna – cf.
    • †Parabellefontia concinna –
  • †Parabolina –
    • †Parabolina argentina – cf.
    • †Parabolina argentina –
    • †Parabolina kobayashii –
    • †Parabolina pheidolopyge –
    • †Parabolina sp. –
  • †Parabolinella – ?
  • †Parabolinella –
    • †Parabolinella argentinenesis –
    • †Parabolinella argentinensis –
    • †Parabolinella bisulcatus –
    • †Parabolinella coelatifrons –
    • †Parabolinella hecuba – cf.
    • †Parabolinella hecuba –
    • †Parabolinella lata –
    • †Parabolinella limitis –
    • †Parabolinella prolata – n. sp.
    • †Parabolinella prolata – cf.
    • †Parabolinella sp. –
    • †Parabolinella triarthroides – ?
    • †Parabolinella triarthroides –
    • †Parabolinella triathroides – ?
    • †Parabolinella triathroides –
    • †Parabolinella tumifrons – n. sp.
    • †Parabolinella variabilis – n. sp.
  • †Paracanthograptus –
    • †Paracanthograptus sp. –
  • †Paraconocerina –
    • †Paraconocerina sp. –
  • †Paradakeoceras –
    • †Paradakeoceras minor –
    • †Paradakeoceras planiventrum –
  • †Paradrepanodus –
    • †Paradrepanodus sp. –
  • †Paraeburoceras –
    • †Paraeburoceras sp. –
  • †Paraendoceras – ?
  • †Paraendoceras –
    • †Paraendoceras depressum – n. sp.
    • †Paraendoceras depressum –
    • †Paraendoceras wappingerense – n. sp.
    • †Paraendoceras wappingerense –
  • †Paraeuloma –
    • †Paraeuloma sp. –
  • †Parahuiheceras –
    • †Parahuiheceras sp. –
  • †Parahystricurus – ?
  • †Parahystricurus –
    • †Parahystricurus bispicatus –
    • †Parahystricurus carinatus – n. sp.
    • †Parahystricurus carinatus –
    • †Parahystricurus fraudator – n. sp.
    • †Parahystricurus fraudator – aff.
    • †Parahystricurus fraudator –
    • †Parahystricurus monspelliensis –
    • †Parahystricurus oculirotundus – n. sp.
    • †Parahystricurus pustulosus – n. sp.
    • †Parahystricurus smithiae – n. sp.
    • †Parahystricurus smithiae –
    • †Parahystricurus sp. –
    • †Parahystricurus sp. A – informal
    • †Parahystricurus sp. B – informal
  • †Paralenorthis –
    • †Paralenorthis semnanensis –
  • †Parallelostrophia – n. gen.
  • †Parallelostrophia –
    • †Parallelostrophia septata – n. sp.
    • †Parallelostrophia septata –
  • †Paraloshanella –
    • †Paraloshanella sp. –
  • †Paramegalaspis –
    • †Paramegalaspis sp. –
  • †Parapanderodus –
    • †Parapanderodus sp. –
  • †Parapilekia – cf.
  • †Parapilekia – ?
  • †Parapilekia –
    • †Parapilekia sp. –
    • †Parapilekia speciosa –
  • †Paraplethopeltis –
    • †Paraplethopeltis carinfera – n. sp.
    • †Paraplethopeltis genacurvus –
    • †Paraplethopeltis genarectus –
    • †Paraplethopeltis minuta – n. sp.
    • †Paraplethopeltis seelyi – n. sp.
    • †Paraplethopeltis seelyi –
    • †Paraplethopeltis sp. –
  • †Paraplicatolina –
    • †Paraplicatolina acantha – n. sp.
  • †Parapliomera –
    • †Parapliomera sibirica –
    • †Parapliomera sp. –
  • †Pararetroclitendoceras –
    • †Pararetroclitendoceras sp. –
  • †Paraszechuanella –
    • †Paraszechuanella changleensis – n. sp.
    • †Paraszechuanella changleensis –
    • †Paraszechuanella sp. –
    • †Paraszechuanella szechuanensis – cf.
  • †Paratemnograptus –
    • †Paratemnograptus sp. –
  • †Parechidnina –
    • †Parechidnina nevadensis – n. sp.
  • †Pareuloma – n. gen.
  • †Pareuloma –
    • †Pareuloma brachymetopa – n. sp.
    • †Pareuloma brachymetopa –
    • †Pareuloma expansum – n. sp.
    • †Pareuloma impunctata – n. sp.
    • †Pareuloma sp. –
  • †Paroistodus –
    • †Paroistodus numarcuatus –
    • †Paroistodus proteus –
    • †Paroistodus sp. –
  • †Pateraspis –
    • †Pateraspis sp. –
  • †Paterula –
    • †Paterula sp. –
  • †Pauropegma –
    • †Pauropegma jelli –
  • †Paurorthis – ?
  • †Paurorthis –
    • †Paurorthis sp. –
  • †Peelerophon –
    • †Peelerophon oehlerti – n. sp.
    • †Peelerophon oehlerti –
  • †Pelecyogyra – n. gen.
    • †Pelecyogyra fezouataensis – n. sp.
  • †Peltabellia – ?
  • †Peltabellia –
    • †Peltabellia lata – n. sp.
    • †Peltabellia lata –
    • †Peltabellia sibirica –
    • †Peltabellia sp. –
  • †Peltocare –
    • †Peltocare modestum – n. sp.
    • †Peltocare norvegicum –
    • †Peltocare olenoides –
    • †Peltocare sp. –
  • †Peltocystis –
    • †Peltocystis sp. –
  • †Peltura – ?
  • †Peltura –
    • †Peltura norvegica –
    • †Peltura sp. –
  • †Pemphigaspis –
    • †Pemphigaspis perforata – n. sp.
  • †Penchiopsis –
    • †Penchiopsis sp. –
    • †Penchiopsis yinzensis –
  • †Petigurus –
    • †Petigurus ellipticus – n. sp.
  • †Phakelodus –
    • †Phakelodus elongatus –
    • †Phakelodus sp. –
    • †Phakelodus tenuis –
  • †Phalacroma –
    • †Phalacroma sp. –
  • †Pharastomina –
    • †Pharastomina sp. –
  • †Pharostomina –
    • †Pharostomina mexicana – n. sp.
    • †Pharostomina sp. –
    • †Pharostomina tenuisulcata – n. sp.
  • †Phosphannulus –
    • †Phosphannulus sp. –
  • †Phycodes –
  • †Phylacterus –
    • †Phylacterus saylesi –
    • †Phylacterus texanus – cf.
  • †Phyllocystis –
    • †Phyllocystis sp. –
  • †Pilekia – ?
  • †Pilekia –
    • †Pilekia sp. –
    • †Pilekia trio – ?
  • †Pinnatulites –
    • †Pinnatulites sp. –
  • †Pionoceras –
    • †Pionoceras swartzi –
  • †Pirania –
    • †Pirania auraeum –
  • †Planolites –
    • †Planolites annularius –
    • †Planolites terraenovae –
  • †Plasiacystis –
    • †Plasiacystis mobilis –
  • †Platycoryphe –
    • †Platycoryphe sp. –
  • †Platylichas –
    • †Platylichas sp. –
  • †Platypeltoides –
    • †Platypeltoides incipiens –
    • †Platypeltoides magrabiensis –
    • †Platypeltoides sp. –
  • †Plectorthis – ?
  • †Plectorthis –
    • †Plectorthis sp. –
  • †Plectrella –
    • †Plectrella yukonensis –
  • †Plesioparabolina –
    • †Plesioparabolina proparia –
  • †Plethopeltis –
    • †Plethopeltis concavus – n. sp.
    • †Plethopeltis concavus –
    • †Plethopeltis obtusus –
    • †Plethopeltis orientalis –
    • †Plethopeltis resseri –
    • †Plethopeltis sp. –
  • †Plethopeltoides –
    • †Plethopeltoides sp. –
  • †Plethopletis –
    • †Plethopletis arbucklensis –
  • †Plethospira –
    • †Plethospira cassina – n. sp.
    • †Plethospira extensa – n. sp.
    • †Plethospira sp. –
  • †Pleurorthis –
    • †Pleurorthis sp. –
  • †Plicatolina –
    • †Plicatolina scalpta –
    • †Plicatolina sp. –
  • †Plicatolinella –
    • †Plicatolinella ocula – n. sp.
  • †Pliomeridius –
    • †Pliomeridius lacunatus –
    • †Pliomeridius sulcatus – n. sp.
    • †Pliomeridius sulcatus –
  • †Pliomeroides –
    • †Pliomeroides deferrariisi –
    • †Pliomeroides primigenus –
  • †Pojetaconcha –
    • †Pojetaconcha chapronierei – n. sp.
  • †Politicurus – ?
  • †Politicurus –
    • †Politicurus politus – n. sp.
    • †Politicurus politus – aff.
    • †Politicurus politus –
    • †Politicurus sp. –
  • †Polygyrata –
    • †Polygyrata hunterensis – n. sp.
  • †Polymeres –
    • †Polymeres sp. –
  • †Polytoechia –
    • †Polytoechia hecatompylensis –
    • †Polytoechia sp. –
  • †Pomatotrema –
    • †Pomatotrema sp. –
  • †Pomeraniotreta –
    • †Pomeraniotreta sp. –
  • †Poramborthis –
    • †Poramborthis sp. –
  • †Pradesia –
    • †Pradesia sp. –
  • †Pradesura –
    • †Pradesura jacobi – n. sp.
  • †Praepatokephalus –
    • †Praepatokephalus sp. –
    • †Praepatokephalus sp. A – informal
  • †Presbynileus –
    • †Presbynileus latifrons – n. sp.
    • †Presbynileus latifrons –
  • †Pricyclopyge –
    • †Pricyclopyge sp. –
  • †Primitia – ?
  • †Primitia –
    • †Primitia sp. –
  • †Primitiella –
    • †Primitiella sp. –
  • †Prioniodus – n. gen.
  • †Prioniodus –
    • †Prioniodus costatus –
    • †Prioniodus oepiki – cf.
    • †Prioniodus sp. –
  • †Prionocheilus –
    • †Prionocheilus sp. –
  • †Proacodus –
    • †Proacodus sp. –
  • †Proceratopyge –
    • †Proceratopyge incondita –
    • †Proceratopyge inexpectata –
  • †Prochauvelicystis –
    • †Prochauvelicystis sp. –
  • †Proconodontus –
    • †Proconodontus sp. –
  • †Proendoceras –
    • †Proendoceras sp. –
  • †Promegalaspides –
    • †Promegalaspides intactus –
  • †Pronajiaceras –
    • †Pronajiaceras sp. –
  • †Prooneotodus – "
  • †Prooneotodus –
    • †Prooneotodus sp. –
    • †Prooneotodus tenuis –
  • †Prophyllodictya –
    • †Prophyllodictya prisca – n. sp.
  • †Proplina – ?
  • †Proplina –
    • †Proplina acutum –
    • †Proplina ampla –
    • †Proplina cornutaformis –
    • †Proplina elongata –
    • †Proplina meramecensis – n. sp.
    • †Proplina sibelius – n. sp.
    • †Proplina sp. –
  • †Prospectatrix –
    • †Prospectatrix brevior – n. sp.
    • †Prospectatrix sp. –
  • †Protambonites –
    • †Protambonites hooshangi –
    • †Protambonites sp. –
  • †Proterocameroceras –
    • †Proterocameroceras sp. –
  • †Proterokaipingoceras –
    • †Proterokaipingoceras sp. –
  • †Proteuloma –
    • †Proteuloma geinitzi –
    • †Proteuloma sp. – n. sp.
    • †Proteuloma sp. –
  • †Protocycloceras –
    • †Protocycloceras doniphorense –
    • †Protocycloceras sp. –
  • †Protocyptendoceras –
    • †Protocyptendoceras sp. –
  • †Protoentactinia – ?
  • †Protoentactinia –
    • †Protoentactinia gracilispinosa – n. sp.
    • †Protoentactinia latospinosa – n. sp.
    • †Protoentactinia minuta – n. sp.
    • †Protoentactinia sp. A – informal
    • †Protoentactinia sp. B – informal
    • †Protoentactinia sp. C – informal
  • †Protopanderodus –
    • †Protopanderodus sp. –
  • †Protopeltura – ?
  • †Protopeltura –
    • †Protopeltura mesembria –
    • †Protopeltura sp. –
    • †Protopeltura vizcachensis – n. sp.
  • †Protopliomeroides –
    • †Protopliomeroides sp. –
  • †Protopliomerops – "
  • †Protopliomerops – ?
  • †Protopliomerops –
    • †Protopliomerops primigenius –
    • †Protopliomerops radiatus –
    • †Protopliomerops sp. –
    • †Protopliomerops sp. 5 – informal
  • †Protopresbynileus –
    • †Protopresbynileus sp. –
    • †Protopresbynileus wildeni –
  • †Protoprioniodus –
    • †Protoprioniodus sp. –
  • †Protopyge –
    • †Protopyge cincta – cf.
  • †Protospongia –
    • †Protospongia sp. –
  • †Psammichnites –
    • †Psammichnites gigas –
  • †Pseudagnostus –
    • †Pseudagnostus sp. –
  • †Pseudoacrocephalites –
    • †Pseudoacrocephalites ilgaensis –
    • †Pseudoacrocephalites sp. –
  • †Pseudoasaphus –
    • †Pseudoasaphus sp. –
  • †Pseudobryograptus –
    • †Pseudobryograptus sp. –
  • †Pseudocalymene –
    • †Pseudocalymene superba –
  • †Pseudoclelandia –
    • †Pseudoclelandia cornupsittaca – n. sp.
    • †Pseudoclelandia cornupsittaca –
    • †Pseudoclelandia fluxafissura – n. sp.
    • †Pseudoclelandia fluxafissura –
    • †Pseudoclelandia lenisora – n. sp.
  • †Pseudocybele –
    • †Pseudocybele nasuta –
  • †Pseudodainella –
    • †Pseudodainella lata –
  • †Pseudoectenolites –
    • †Pseudoectenolites sp. –
  • †Pseudoeuchasma –
    • †Pseudoeuchasma typica –
  • †Pseudohysterolenus –
    • †Pseudohysterolenus infidus –
    • †Pseudohysterolenus sp. –
  • †Pseudohystricurus – ?
  • †Pseudohystricurus –
    • †Pseudohystricurus obesus – n. sp.
    • †Pseudohystricurus obesus – cf.
    • †Pseudohystricurus rotundus – n. sp.
    • †Pseudohystricurus sp. –
  • †Pseudokainella – ?
  • †Pseudokainella –
    • †Pseudokainella armatus –
    • †Pseudokainella impar –
    • †Pseudokainella keideli –
    • †Pseudokainella lata –
    • †Pseudokainella pustulosa –
    • †Pseudokainella sp. –
    • †Pseudokainella sp. A – informal
  • †Pseudokoldinella –
    • †Pseudokoldinella sp. –
  • †Pseudokoldinia – n. gen.
  • †Pseudokoldinia –
    • †Pseudokoldinia gloriosa – n. sp.
    • †Pseudokoldinia sp. –
  • †Pseudokoldinioidia –
    • †Pseudokoldinioidia sp. –
  • †Pseudolingula –
    • †Pseudolingula sp. –
  • †Pseudomera –
    • †Pseudomera sp. 1 – informal
    • †Pseudomera sp. 2 – informal
  • †Pseudoperonopsis –
    • †Pseudoperonopsis zuninoi –
  • †Pseudopetigurus –
    • †Pseudopetigurus sp. –
  • †Pseudoscenella – ?
    • †Pseudoscenella manchurica –
  • †Pseudotalbotina –
    • †Pseudotalbotina ovalis – n. sp.
  • †Pseudotechnophorus –
    • †Pseudotechnophorus typicalis –
  • †Psilocephalina –
    • †Psilocephalina lubrica –
    • †Psilocephalina sp. –
  • †Psilocephalinella –
    • †Psilocephalinella sp. –
  • †Ptychopegma – n. gen.
  • †Ptychopegma –
    • †Ptychopegma burgeri – n. sp.
    • †Ptychopegma burgeri –
  • †Ptychopleurites –
    • †Ptychopleurites johnsoni – n. sp.
  • †Ptyocephalus –
    • †Ptyocephalus acclivus –
    • †Ptyocephalus declevitus –
  • †Pulchrilamina – ?
  • †Pulchrilamina –
    • †Pulchrilamina sp. –
    • †Pulchrilamina spinosa –
  • †Punctolira –
    • †Punctolira punctolira –
    • †Punctolira sp. –
  • †Purmanarcoceras –
    • †Purmanarcoceras sp. –
  • †Pyraustocranium –
    • †Pyraustocranium orbatum – n. sp.
  • †Pyritonema –
    • †Pyritonema sp. –
  • †Radiograptus –
    • †Radiograptus sp. –
  • †Rafinesquina –
    • †Rafinesquina sp. –
  • †Randaynia –
    • †Randaynia saundersi –
  • †Ranorthis –
    • †Ranorthis cheshmehaliana –
    • †Ranorthis sp. –
  • †Raphiophorus –
    • †Raphiophorus sp. –
  • †Raphistoma –
    • †Raphistoma sp. –
  • †Rasettia – ?
  • †Rasettia –
    • †Rasettia capax – cf.
    • †Rasettia granulatus –
    • †Rasettia sp. –
  • †Rectroclitendoceras –
    • †Rectroclitendoceras sp. –
  • †Redonia –
    • †Redonia michelae – cf.
    • †Redonia michelae –
    • †Redonia sp. –
  • †Remopleuridella – ?
    • †Remopleuridella obtusa –
  • †Remopleurides –
    • †Remopleurides sp. –
  • †Remopleuridiella – ?
  • †Remopleuridiella –
    • †Remopleuridiella caudalimbata – n. sp.
    • †Remopleuridiella caudalimbata –
    • †Remopleuridiella obtusa – n. sp.
    • †Remopleuridiella sp. –
  • †Renalcis –
    • †Renalcis sp. –
  • †Retroclitendoceras –
    • †Retroclitendoceras sp. –
  • †Rhabdinopora –
    • †Rhabdinopora sp. –
  • †Rhacopea –
    • †Rhacopea sp. –
  • †Rhadinopleura –
    • †Rhadinopleura eurycephala –
  • †Rhopalocoelia –
    • †Rhopalocoelia sanxiaensis – n. sp.
  • †Rhopalocystis –
    • †Rhopalocystis sp. –
  • †Ribeiria – n. gen.
  • †Ribeiria –
    • †Ribeiria bassleri –
    • †Ribeiria calcifera –
    • †Ribeiria lucan – n. sp.
    • †Ribeiria lucan –
    • †Ribeiria manchurica –
    • †Ribeiria parva – cf.
    • †Ribeiria pojetai – n. sp.
    • †Ribeiria sp. –
    • †Ribeiria sp. A – informal
  • †Richardsonella –
    • †Richardsonella sp. –
    • †Richardsonella variagranula – n. sp.
  • †Rioceras – n. gen.
  • †Rioceras – ?
  • †Rioceras –
    • †Rioceras depressum – n. sp.
    • †Rioceras escandei –
    • †Rioceras expansum – n. sp.
    • †Rioceras fusiforme – n. sp.
    • †Rioceras lobatum – n. sp.
    • †Rioceras minore –
    • †Rioceras nondescriptum – n. sp.
    • †Rioceras nondescriptum –
    • †Rioceras oxacaense –
    • †Rioceras sp. –
  • †Robertorthis –
    • †Robertorthis sp. –
  • †Robsonoceras –
    • †Robsonoceras robsonense – n. sp.
    • †Robsonoceras robsonense –
    • †Robsonoceras sp. –
  • †Robustum – n. gen.
  • †Robustum –
  • †Rosobolus –
    • †Rosobolus sp. –
  • †Rossaspis –
    • †Rossaspis rossi –
    • †Rossaspis sp. –
    • †Rossaspis superciliosa – n. sp.
    • †Rossaspis superciliosa –
  • †Rosselia –
    • †Rosselia sp. –
  • †Rossicurus –
    • †Rossicurus lepidus –
    • †Rossicurus sp. 1 – informal
    • †Rossicurus sp. 2 – informal
    • †Rossicurus sp. 3 – informal
    • †Rossicurus sp. 4 – informal
  • †Rossodus – ?
  • †Rossodus –
    • †Rossodus manitouensis –
    • †Rossodus sp. –
    • †Rossodus tenuis –
  • †Rowellella –
    • †Rowellella sp. –
  • †Rusophycus –
    • †Rusophycus crimesi –
    • †Rusophycus didymus –
    • †Rusophycus dispar – cf.
    • †Rusophycus euntendorfensis –
    • †Rusophycus latus –
    • †Rusophycus leifeirikssoni –
    • †Rusophycus pedroanus – cf.
  • †Ruthenoceras – "
    • †Ruthenoceras sp. –
  • †Sagavia –
    • †Sagavia durandi – n. sp.
  • †Saloceras –
    • †Saloceras chinianense –
    • †Saloceras murvielense –
    • †Saloceras sericeum – n. sp.
    • †Saloceras sericeum –
  • †Saltaspis –
    • †Saltaspis sp. –
    • †Saltaspis steinmanni –
  • †Saltite –
    • †Saltite sp. –
  • †Sanbernardaspis –
    • †Sanbernardaspis pygacantha –
  • †Sanxignathus –
    • †Sanxignathus sp. –
  • †Saukia –
    • †Saukia globosa – n. sp.
  • †Saukiella – ?
  • †Saukiella –
    • †Saukiella sp. –
  • †Scaevogyra – "
  • †Scaevogyra –
    • †Scaevogyra naticaformis –
    • †Scaevogyra ulrichi –
  • †Scalpellodus –
    • †Scalpellodus longipinnatus –
    • †Scalpellodus sp. –
  • †Scandodus –
    • †Scandodus rectus –
    • †Scandodus sp. –
  • †Scenella –
    • †Scenella sp. –
  • †Schizambon – ?
  • †Schizambon –
    • †Schizambon discoidea –
    • †Schizambon obtusus – n. sp.
    • †Schizambon obtusus –
    • †Schizambon sp. –
  • †Schizograptus –
    • †Schizograptus sp. –
  • †Schizopea –
    • †Schizopea grandis –
    • †Schizopea sp. –
    • †Schizopea sp. B – informal
    • †Schizopea typica – n. sp.
    • †Schizopea typica –
  • †Scolopodus –
    • †Scolopodus bassleri – aff.
    • †Scolopodus bassleri –
    • †Scolopodus quadraplicatus –
    • †Scolopodus quadriplicatus –
    • †Scolopodus sp. –
    • †Scolopodus staufferi –
    • †Scolopodus triplicatus –
    • †Scolopodus warendensis –
  • †Scotiaecystis –
    • †Scotiaecystis sp. –
  • †Scotoharpes –
    • †Scotoharpes sp. –
  • †Seelyoceras –
    • †Seelyoceras sp. –
  • †Selenopeltis –
    • †Selenopeltis sp. –
  • †Semiacontiodus –
    • †Semiacontiodus iowensis –
    • †Semiacontiodus sp. –
  • †Semitreta –
    • †Semitreta maior –
    • †Semitreta sp. –
  • †Serpulites –
    • †Serpulites sp. –
  • †Serratognathus –
    • †Serratognathus sp. –
  • †Shelbyoceras –
    • †Shelbyoceras bigpineyensis – n. sp.
  • †Shumardia – ?
  • †Shumardia –
    • †Shumardia alata – n. sp.
    • †Shumardia ctenata – n. sp.
    • †Shumardia erquensis –
    • †Shumardia gaoluoensis –
    • †Shumardia minutula –
    • †Shumardia pentagonalis – cf.
    • †Shumardia pusilla – ?
    • †Shumardia pusilla –
    • †Shumardia salopiensis –
    • †Shumardia simehensis –
    • †Shumardia sp. –
  • †Sinocystis –
    • †Sinocystis loczyi – cf.
  • †Sinoparapilekia – ?
  • †Sinoparapilekia –
    • †Sinoparapilekia sp. –
  • †Sinoprimitia –
    • †Sinoprimitia sp. –
  • †Sinorthis –
    • †Sinorthis sp. –
  • †Sinuitella –
    • †Sinuitella norvegica –
  • †Sinuites –
    • †Sinuites sowerbyi –
  • †Sinuopea – ?
  • †Sinuopea –
    • †Sinuopea basiplanata – n. sp.
    • †Sinuopea basiplanata – aff.
    • †Sinuopea basiplanata –
    • †Sinuopea cingulata – n. sp.
    • †Sinuopea emminencis – n. sp.
    • †Sinuopea humerosa –
    • †Sinuopea parva – n. sp.
    • †Sinuopea sp. –
    • †Sinuopea sp. 1 – informal
    • †Sinuopea sp. 2 – informal
    • †Sinuopea sp. 3 – informal
    • †Sinuopea sweeti –
    • †Sinuopea vera –
    • †Sinuopea whittardi – n. sp.
    • †Sinuopea whittardi –
  • †Siphonobolus – ?
  • †Siphonobolus –
    • †Siphonobolus sp. –
    • †Siphonobolus uralensis –
  • †Siphonotretella –
    • †Siphonotretella popovi – n. sp.
  • †Skljarella –
    • †Skljarella cracens –
  • †Skolithos –
    • †Skolithos magnus –
    • †Skolithos verticalis –
  • †Slemmestadoceras –
    • †Slemmestadoceras attavus –
  • †Songtaoia –
    • †Songtaoia cylindrata – n. sp.
    • †Songtaoia sp. –
    • †Songtaoia tuberculata – n. sp.
    • †Songtaoia tuberculata –
  • †Sowerbyella –
    • †Sowerbyella sp. –
  • †Sphaerocare –
    • †Sphaerocare globifrons –
    • †Sphaerocare sp. –
  • †Sphaerophthalmella –
    • †Sphaerophthalmella inexpectans –
  • †Spinilingula –
    • †Spinilingula prisca – n. sp.
    • †Spinilingula prisca –
  • †Spirorbis –
    • †Spirorbis sp. –
  • †Spondyglossella –
    • †Spondyglossella sp. –
  • †Staurograptus –
    • †Staurograptus dichotomus –
    • †Staurograptus sp. –
  • †Stelliferidium –
    • †Stelliferidium sp. –
  • †Stemtonoceras –
    • †Stemtonoceras elongatum –
  • †Stenopilus – ?
  • †Stenopilus –
    • †Stenopilus convexus –
    • †Stenopilus hirtus – n. sp.
    • †Stenopilus sp. –
  • †Stereoplasmoceras –
    • †Stereoplasmoceras sp. –
  • †Stichotrophia –
    • †Stichotrophia sp. –
  • †Straparollina –
    • †Straparollina turgida –
  • †Strepsodiscus –
    • †Strepsodiscus major –
    • †Strepsodiscus paucivoluta –
  • †Striaconus –
    • †Striaconus sp. –
  • †Striatodontus –
    • †Striatodontus sp. –
  • †Strophomena –
    • †Strophomena sp. –
  • †Suttonoceras – n. gen.
    • †Suttonoceras rossorum – n. sp.
  • †Symphusurus –
    • †Symphusurus sp. –
  • †Symphysurina – ?
  • †Symphysurina –
    • †Symphysurina brevis –
    • †Symphysurina cleora – cf.
    • †Symphysurina convexa –
    • †Symphysurina elegans – n. sp.
    • †Symphysurina eugenia –
    • †Symphysurina globocapitella –
    • †Symphysurina illaenoides –
    • †Symphysurina myopia – n. sp.
    • †Symphysurina oriens –
    • †Symphysurina robusta – n. sp.
    • †Symphysurina sp. –
    • †Symphysurina sp. a – informal
    • †Symphysurina sp. b – informal
    • †Symphysurina spicata – cf.
    • †Symphysurina spicata –
    • †Symphysurina spp. –
    • †Symphysurina uncaspicata –
    • †Symphysurina walcotti –
    • †Symphysurina woosteri – cf.
  • †Symphysurus – ?
  • †Symphysurus –
    • †Symphysurus angustatus –
    • †Symphysurus sp. –
    • †Symphysurus subquadratus – cf.
  • †Syntrophia –
    • †Syntrophia sanjuanina – n. sp.
    • †Syntrophia sanjuanina –
    • †Syntrophia sp. –
  • †Syntrophina – cf.
  • †Syntrophina – ?
  • †Syntrophina –
    • †Syntrophina altaica –
    • †Syntrophina campbelli – cf.
    • †Syntrophina campbelli –
    • †Syntrophina carinifera –
    • †Syntrophina missouriensis –
    • †Syntrophina nana –
    • †Syntrophina sp. –
  • †Syntrophinella –
    • †Syntrophinella sp. –
  • †Syntrophopsis –
    • †Syntrophopsis sp. –
  • †Taihungshania –
    • †Taihungshania miqueli –
    • †Taihungshania sp. –
  • †Taihungshanoceras –
    • †Taihungshanoceras sp. –
  • †Talassoceras –
    • †Talassoceras sp. –
  • †Tarfaya – "
  • †Tarfaya –
    • †Tarfaya grandis –
    • †Tarfaya jafariani –
  • †Tatonaspis –
    • †Tatonaspis kindlei –
  • †Technophorus –
    • †Technophorus kempae –
    • †Technophorus planei – n. sp.
    • †Technophorus planei –
  • †Teichichnus –
    • †Teichichnus rectus –
  • †Temnograptus –
    • †Temnograptus regularis – aff.
    • †Temnograptus sp. –
  • †Tentaculites –
    • †Tentaculites lowdoni – n. sp.
    • †Tentaculites scalaris –
  • †Teratoceroides –
    • †Teratoceroides sp. –
  • †Teridontus –
    • †Teridontus nakamurai –
    • †Teridontus obesus –
    • †Teridontus sp. –
  • †Tersella –
    • †Tersella sp. –
  • †Tesselacauda – ?
  • †Tesselacauda –
    • †Tesselacauda depressa – n. sp.
    • †Tesselacauda depressa –
    • †Tesselacauda flabella –
    • †Tesselacauda sp. –
  • †Tetragraptus –
    • †Tetragraptus decipiens – cf.
    • †Tetragraptus decipiens –
    • †Tetragraptus sp. –
  • †Tetralobula – ?
  • †Tetralobula –
    • †Tetralobula delicatula –
    • †Tetralobula mediocostata –
    • †Tetralobula shorica –
    • †Tetralobula sp. –
    • †Tetralobula texana –
  • †Thalassinoides –
    • †Thalassinoides paradoxicus –
  • †Thoralaster – n. gen.
    • †Thoralaster spiculiformis – n. sp.
  • †Thoralia –
    • †Thoralia languedociana –
  • †Thoralispira –
    • †Thoralispira laevis – cf.
    • †Thoralispira occitana –
    • †Thoralispira sp. –
  • †Thoraloceras –
    • †Thoraloceras bactritoides –
  • †Thoralocolus –
    • †Thoralocolus sp. –
  • †Thysanobololus –
    • †Thysanobololus sp. –
  • †Thysanopyge –
    • †Thysanopyge argentina –
    • †Thysanopyge sp. –
  • †Thysanotos –
    • †Thysanotos multispinulosus –
    • †Thysanotos sp. –
  • †Tinaspis –
    • †Tinaspis totoyaca – n. sp.
  • †Titanoplina – n. gen.
  • †Titanoplina –
    • †Titanoplina meramecensis – n. sp.
    • †Titanoplina meramecensis –
  • †Toletanaspis –
    • †Toletanaspis sp. –
  • †Tolmachovia –
    • †Tolmachovia andina – n. sp.
    • †Tolmachovia belfordi –
    • †Tolmachovia concentrica –
  • †Tomaculum –
    • †Tomaculum sp. –
  • †Tomasina – ?
  • †Tomasina –
    • †Tomasina sp. –
  • †Torynelasma – ?
    • †Torynelasma sp. –
  • †Tostonia –
    • †Tostonia sp. –
  • †Trapezognathus –
    • †Trapezognathus diprion –
  • †Triangulodus –
    • †Triangulodus sp. –
  • †Triarthropsis –
    • †Triarthropsis nitida –
  • †Triarthrus – ?
  • †Triarthrus –
    • †Triarthrus angelini –
    • †Triarthrus rectifrons –
    • †Triarthrus shinetonensis –
    • †Triarthrus sp. –
    • †Triarthrus tertragonalis –
  • †Trigonocerca – ?
    • †Trigonocerca sp. –
  • †Trigonograptus –
    • †Trigonograptus sp. –
  • †Trilobitarum –
    • †Trilobitarum sp. –
  • †Trinodus – ?
  • †Trinodus –
    • †Trinodus jujuyensis –
    • †Trinodus mobergi –
    • †Trinodus saltaensis –
    • †Trinodus sp. –
  • †Triograptus –
    • †Triograptus sp. –
  • †Tritoechia –
    • †Tritoechia kendyktasica – n. sp.
    • †Tritoechia preandina – n. sp.
    • †Tritoechia preandina –
    • †Tritoechia prima – n. sp.
    • †Tritoechia prima –
    • †Tritoechia sp. –
  • †Trochonema –
    • †Trochonema exile – n. sp.
  • †Tropidodiscus – ?
  • †Tropidodiscus –
    • †Tropidodiscus sp. –
  • †Tropidopyge –
    • †Tropidopyge broeggeri –
    • †Tropidopyge sp. –
  • †Tropodus –
    • †Tropodus sp. –
  • †Trypanites –
    • †Trypanites sp. –
  • †Tsinania –
    • †Tsinania sp. –
  • †Tulepyge –
    • †Tulepyge paucituberculata – n. sp.
    • †Tulepyge paucituberculata –
    • †Tulepyge tulensis – n. sp.
  • †Tungtzuela –
    • †Tungtzuela szechuanensis –
  • †Tungtzuella –
    • †Tungtzuella sp. –
  • †Ucumaris – n. gen.
    • †Ucumaris conradoi – n. sp.
  • †Ulrichaspis –
    • †Ulrichaspis sp. –
  • †Ulrichidina –
    • †Ulrichidina sp. –
  • †Ulrichodina –
    • †Ulrichodina sp. –
  • †Utahconus – aff.
  • †Utahconus –
    • †Utahconus longipinnatus – aff.
    • †Utahconus longipinnatus –
  • †Vachikaspis –
    • †Vachikaspis insueta –
  • †Variabiliconus –
    • †Variabiliconus sp. –
    • †Variabiliconus variabilis – cf.
  • †Variabiloconus –
  • †Varvia – n. gen.
  • †Varvia –
    • †Varvia longicauda – n. sp.
    • †Varvia longicauda –
  • †Vassaroceras –
    • †Vassaroceras henrietta – n. sp.
    • †Vassaroceras henrietta –
  • †Velellospongia – n. gen.
    • †Velellospongia adnata – n. sp.
  • †Veryhachium –
    • †Veryhachium sp. –
  • †Villebrunaster –
    • †Villebrunaster thorali –
  • †Vulcanisphaera –
    • †Vulcanisphaera sp. –
  • †Wahwahlingula – ?
  • †Wahwahlingula –
    • †Wahwahlingula kharbashi –
    • †Wahwahlingula sevierensis – n. sp.
    • †Wahwahlingula sevierensis –
    • †Wahwahlingula sp. –
  • †Walcottoceras – ?
  • †Walcottoceras –
    • †Walcottoceras monsense – n. sp.
    • †Walcottoceras monsense –
    • †Walcottoceras sp. –
  • †Wanwanella –
    • †Wanwanella striata –
    • †Wanwanella trigonalis –
    • †Wanwanella wanwanensis –
  • †Wanwania –
    • †Wanwania ambonychiformis –
    • †Wanwania compressa –
    • †Wanwania drucei – n. sp.
    • †Wanwania drucei –
  • †Wanwanoceras –
    • †Wanwanoceras peculiare –
  • †Westergardia – ?
    • †Westergardia sp. –
  • †Westonisca –
    • †Westonisca sp. –
  • †Woosteroceras –
    • †Woosteroceras chepultepecense – n. sp.
    • †Woosteroceras cherokeense –
    • †Woosteroceras flexiseptatum – n. sp.
    • †Woosteroceras percurvatum – n. sp.
    • †Woosteroceras sp. –
    • †Woosteroceras spirale – n. sp.
    • †Woosteroceras trempealeauense –
  • †Xenostegium –
    • †Xenostegium acuminferentis – cf.
    • †Xenostegium franklinense – n. sp.
    • †Xenostegium franklinense – cf.
    • †Xenostegium franklinense –
    • †Xenostegium sp. –
  • †Xiadongoceras –
    • †Xiadongoceras sp. –
  • †Xianorthis –
    • †Xianorthis sp. –
  • †Xinanorthis –
    • †Xinanorthis qoomesensis –
  • †Yangtzeella –
    • †Yangtzeella poloi –
    • †Yangtzeella sp. –
  • †Yichangopora –
    • †Yichangopora sp. –
  • †Yochelsonella – n. gen.
    • †Yochelsonella compressa – n. sp.
  • †Yorkia – ?
  • †Yorkia –
    • †Yorkia sp. –
  • †Yosimuraspis –
    • †Yosimuraspis sp. –
    • †Yosimuraspis spicata – n. sp.
    • †Yosimuraspis spicata –
  • †Yukonaspis –
    • †Yukonaspis kindlei –
  • †Zacompsus –
    • †Zacompsus occidentalis –
  • †Zagoracaris –
    • †Zagoracaris fezouataensis –
    • †Zagoracaris sp. –
  • †Zhongnanoceras –
    • †Zhongnanoceras sp. –
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