Wiktionary
n. Any of various odd-toed ungulates, of the family ''(taxlink Chalicotheriidae family noshow=1)'', from the Eocene and Pleistocene periods
Wikipedia
Chalicotheres (from Greek chalix, "gravel" + therion, "beast") were a group of herbivorous, odd-toed ungulate (perissodactyl) mammals spread throughout North America, Europe, Asia, and Africa during the Middle Eocene to Early Pleistocene subepochs living from 46.2 mya—781,000 years ago, existing approximately .
They evolved around 46 million years ago from small, forest animals similar to the early horses. Many chalicotheres, including such animals as Moropus and Chalicotherium, reached the size of a horse. By the late Oligocene, they had divided into two groups: one that grazed in open areas and another that was more adapted to woodlands. They died out around 781,000 years ago, Nestoritherium being the most recently dated chalicothere. Chalicotheres are related to the extinct brontotheres, as well as to modern day horses, rhinoceroses, and tapirs.
Usage examples of "chalicothere".
Most of these remains were actually of rhinos, giraffes, elephants, lions, and chalicotheres, the huge mammals of the Pleistocene brought to light by the tectonic churning of this place, where Africa drove slowly north into Eurasia.
For a heartbeat he stood upright, peering out into a world beyond the primates' reach, out into the green emptiness where animals walked, the antelopes, elephants, and chalicotheres grazing the abundant grass.