Perchoerus, peccary skull Oviraptor left a series of half-tracks

left a series of half-tracks on its return to the treeline

It is otherwise a very rare complete specimen

The large compound eyes are the main sensory organ of dragonflies

which is an extra hard form of plaster

Despite similar fossils being unearthed in the 1930's (in Namibia) and the 1940's (in Australia)

Perchoerus, peccary skull Oviraptor left a series of half-tracksPerchoerus is one of the rarest of the mammal fossils found in the White River Badlands and is much rarer than the cats and nimravids from the same area. They bear a strong resemblance to pigs, but pigs are from a separate family (the Suidae). They are the result of convergent evolution to pigs. During the convergent evolution, they occupied similar ecological niches and both were omnivorous rooters. The fossil record places peccaries in the Upper to