from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various extinct ungulate mammals of the Eocene to Pleistocene epochs, having distinctive three-clawed, three-toed feet.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of various odd-toed ungulates, of the family Chalicotheriidae, from the Eocene and Pleistocene periods
She decided to announce them to the world at a press conference in Washington, D.C., in February 1978, along with some other surprising finds: the first fossilized prints of a chalicothere, a peculiar herbivore that sported claws on its hooves; and the possible track of a knuckle-walking ape.