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meaning: "Deceptive femur"
Named By: Samuel Wendell Williston in 1903
Time Period: Early Cretaceous
Location: USA, Kansas - Kiowa Shale
Size: Uncertain
Diet: Piscivore/Carnivore
Fossil(s): Single bone
Classification: | Chordata | Reptilia | Sauropterygia | Plesiosauria |

Apatomerus (meaning "deceptive femur"), is a genus of extinct reptile known from a single fossil (KUVP 1199) from the Albian-age (Lower Cretaceous) Kiowa Shale of Kansas, USA. This bone, collected in 1893, was first identified as the thighbone of a crocodilian, but was described in 1903 by Samuel Wendell Williston as belonging to a pterosaur. This identification held through the 1970s, but has been abandoned. Recent summaries of pterosaur genera, such as Wellnhofer, 1991 and Glut, 2004 did not include it, and Mike Everhart, an authority on the rocks of the Western Interior Seaway (including the Kiowa Shale) identifies the bone as more likely the upper part of a plesiosaurian propodial (a limb bone).

Read more about Apatomerus at Wikipedia
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