Colymbosaurus (plesiosaur) sacral vertebra

Colymbosaurus sacral vertebra

Colymbosaurus is a genus of English plesiosaur described in 1874 by Seeley. The only bones found include 74 vertebrae and fins. Theory has it that this may be the missing body of Kimmerosaurus, which would make this a cryptoclid instead of an elasmosaurid.



Mantell's Iguanodon restoration

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