What is "chalicotheriinae"

Chalicotheriines make up an extinct subfamily of the family Chalicotheriidae, a group of herbivorous, odd-toed ungulate (perissodactyl) mammals. Characteristic of this group is an unusual, gorilla-like body plan with very long forelimbs, short hindlimbs, and a partial knuckle-walking position. Analysis of dental microwear implies most chalicotheriines fed on hard fruit and/or seeds. Their claws were most likely used in a hook-like manner to pull down branches, suggesting they lived as bipedal browsers. Presence of chalicotheriine fossils is generally regarded as an indicator of treed environments.