(infra-order Pecora, superfamily Bovoidea)
A family of ‘antelope-goats’, which first appeared in the middle of the Miocene. In general appearance, the earliest representatives probably resembled roe deer. The horns have two branches in bucks, and are usually simple in does but sometimes have a small prong. The horns have a hard bony core, and a soft, keratinous covering which is shed. The feet possess two digits. Antilocaprids graze or browse in herds. There is one surviving species, in one genus (Antilocapra, the pronghorn), found in western N. America.
Subjects: Zoology and Animal Sciences.