Othniel Marsh

Othniel Charles Marsh (1831-1899) was one of the pre-eminent paleontologists of the 19th century, who discovered and named many fossils found in the American West.

In 1891, one of his disciples, John Hatcher, discovered a new species, Torosaurus, a find which delighted Marsh. Torosaurus was a much larger species than its cousin, Triceratops, which had been discovered by one of Marsh's rivals.