1.1" Poebrotherium Wilsoni Fossil Jaw Teeth Primitive Camel SD Badlands COA Display Squid Fossilized partial carcasses bearing distinctive Fossilized partial carcasses bearing distinctive feeding marks provide compelling taphonomic evidence of predation and caching behavior—traces attributable exclusively to Archaeotherium within the White River fauna The study of diogenites provides valuable information about planetary differentiation processes—how celestial bodies separate into layers based on density—and helps scientists understand the conditions present in the early solar system Poebrotherium was first described by the pioneering paleontologist Joseph Leidy in 1848 9 22 Million Years Old