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Platygonus pearcei is an extinct species Peccary, a group related to modern pigs and hogs. Platygonus pearcei, like modern peccaries, is an artiodactyl, meaning that it is an even toed, hooved mammal. Other artiodactyls include giraffes, pigs, and hippos. Named by Gazin 1938, Platygonus pearcei has eight other species in its genus. It has been found in Idaho, Nevada, and Washington. However, the genus spanned the entire range of North America. Platygonus pearcei lived from the Early Pliocene to the Early Pleistocene (4.75 you 2.9 million years ago) (Bjork, 1970).
Platygonus pearcei travelled in herds and is presumed to have a similar population dynamic to modern peccaries (Finch, Whitmore, & Sims, 1972). It was similar in size to the modern European Wild Boar Sus scrofa (Nye, 2007).