, which means "deceptive femur", is a genus of plesiosaur from the Early Cretaceous of the Kiowa Shale of Kansas, USA. It possibly closely related to Plesiosaurus. Its femur (thighbone) was first identified as the thighbone of a crocodilian, then a pterosaur. Apatomerus was first named in 1903.

Article by Brian Tinnon 11/22/11

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