At a nearby site a human rib and charcoal were found in association with Mylodon, Megalonyx, and Chlamytherium (ground sloth) teeth. Loomis found in the same stratum mammoth, mastodon, horse, ground sloth, tapir, peccary, camel, and saber-tooth cat bones, all extinct in Florida since the end of the Pleistocene 10,000–8,000 BCE. Loomis found a second elephant, with a 'large rough flint instrument' among fragments of the elephant's ribs. Singleton, a Harvard University zoologist, discovered the bones of a mammoth ( Mammuthus columbi) on his property along Crane Creek, 1.5 miles (2.4 km) from Melbourne, and brought in Amherst College paleontologist Frederick B. Evidence for the presence of Paleo-Indians in the Melbourne area during the late Pleistocene epoch was uncovered during the 1920s.