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What is a Plesiosaur?
| Plesiosaur: a Mesozoic marine reptile |
| Suborder: Plesiosauria |
| Order: Sauropterygia |
| These Mesozoic marine reptiles
comprise one of the most succesful and widely distributed groups of marine
tetrapods (Callaway and Nicholls, 1997).
Note that since 1865 there have been few attempts to clarify the anatomy and status of the species Plesiosaurus or, even of the genus itself. As a result a historical lack of understanding of the range of variation in Plesiosaurs and poor knowledge of their generic characteristics has caused great confusion on their exact classification (Callaway and Nicholls, 1997). |
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