hyracotherium

English Thesaurus

1. extinct horse genus; formerly called eohippus (noun.animal)

hypernym	:	mammal genus,
definition	:	a genus of mammals (noun.animal)

member holonym	:	dawn horse, eohippus,
definition	:	earliest horse; extinct primitive dog-sized four-toed Eocene animal (noun.animal)

member meronym	:	equidae, family equidae,
definition	:	horses; asses; zebras; extinct animals (noun.animal)