Maretia
| Maretia Temporal range:
| |
|---|---|
.jpg/1280px-Tiny_maretia_heart_urchin_(Maretia_planulata).jpg)
| |
| Maretia planulata | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Echinodermata |
| Class: | Echinoidea |
| Order: | Spatangoida |
| Family: | Maretiidae |
| Genus: | Maretia Gray, 1855 |
.jpg){kind=link}
Maretia is a genus of heart urchins belonging to the family Spatangidae.[1][2]
Species
- Maretia carinata Bolau, 1873
- Maretia cordata Mortensen, 1948
- †Maretia estenozi Sánchez Roig, 1926
- Maretia planulata (Lamarck, 1816)[3]
Description
These sea urchins are irregular, as the mouth is located at the front of the underside of the animal, while the anus is located in rear end position.[4]
Fossil record
Fossils of Maretia are found in marine strata from the Eocene until the Quaternary (age range: from 40.4 to 0.012 million years ago.). Fossils are known from some localities in United Kingdom, United States, Germany, Spain, Cuba, Indonesia, New Zealand, and Eritrea and Greece.[5]
References
- ^ Catalogue of life
- ^ Ubio
- ^ Kroh, A.; Mooi, R. (2021). "Maretia". WoRMS. World Register of Marine Species. Retrieved 23 September 2021.
{{cite web}}: CS1 maint: multiple names: authors list (link) - ^ Moore, R.C. (ed.). 1966-1978. Treatise on invertebrate paleontology. Parts S-U. Echinodermata. 2 Volumes. Geological Society of America and Univer-sity of Kansas, Kansas.
- ^ Paleobiologhy Database
- Rowe, F.W.E & Gates, J. (1995). Echinodermata. In ‘Zoological Catalogue of Australia’. 33 (Ed A. Wells.) pp xiii + 510 (CSIRO Australia, Melbourne.)
External links
- Reef Guide
- Flickr
- Underwater Photographs by P. Rossi
 | This article about a sea urchin is a stub. You can help Wikipedia by expanding it. |
