HESPEROPITHECUS, THE FIRST ANTHROPOID PRIMATE FOUND IN AMERICA (English Edition)

Henry Fairfield Osborn, Sr. (August 8, 1857 – November 6, 1935) was an American geologist, paleontologist, and eugenist, and the president of the American Museum of Natural History for 25 years. Nebraska Man was a name applied to Hesperopithecus haroldcookii, a putative species of ape. Hesperopithecus meant "ape of the western world," and it was heralded as the first higher primate of North America. Haroldcookii was given as the species name in reference to the original discoverer of the tooth, Harold Cook. It was originally described by Henry Fairfield Osborn in 1922, on the basis of a tooth that rancher and geologist Harold Cook found in Nebraska in 1917.