Name: Apatomerus ‭(‬Deceptive femur‭)‬.
Phonetic: A-pat-oh-meh-rus.
Named By: Samuel Wendell Williston‭ ‬-‭ ‬1903.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Sauropterygia,‭ ‬Plesiosauria‭?
Species: A.‭ ‬mirus‭ (‬type‭)‬.
Diet: Piscivore/Carnivore.
Size: Uncertain.
Known locations: USA,‭ ‬Kansas‭ ‬-‭ ‬Kiowa Shale.
Time period: Albian of the Cretaceous.
Fossil representation: Single bone.

       When it comes to naming prehistoric animals,‭ ‬the names can be confusing,‭ ‬but Apatomerus,‭ ‬which means‭ '‬deceptive femur‭’ ‬was spot on.‭ ‬Initially thought to a thigh of a crocodile,‭ ‬Williston later declared it to be a pterosaur bone.‭ ‬Later study has now deduced that it is probably not a pterosaur bone and is possibly from a plesiosaur.

Further reading
- On the osteology of Nyctosaurus (Nyctodactylus), with notes on American pterosaurs. - Field Columbian Museum Publications, Geological Series 2:125-163. - S. W. Williston - 1903.


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