Examine a fossiliferous Pliocene-aged site!
Did you know that horses evolved in North America? The Hagerman horse, Equus simplicidens, is the first true one-toed horse. It's the park's most famous fossil, but we have fossils from over two hundred other species too! From the saber-toothed cat, mastodon, bear, camel, and ground sloth, to smaller animals like rodents and frogs, the scientific study of Pliocene fossils is the key to Hagerman.