User:ArthurWeasley/Oligocene
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Halitherium, Sirenia, Europe
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Palaeocastor, Castoridae, North America
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Eomys, rodent, Europe
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Janjucetus, Mysticeti, Australia
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Aetiocetus, Mysticeti, Oregon
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Merycoidodon, Oreodont, North America
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Copepteryx, Plotopterid, Japan
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Leptomeryx, North America
