Hypisodus is an extinct genus belonging to the family Hypertragulidae, within the order Artiodactyla, endemic to North America during the Eocene through Oligocene, living 37.2–26.3 Ma, existing for approximately. Hypisodus were primitive and ancient ruminants, resembling small deer or musk deer, although they were more closely related to modern chevrotains. Its diet was thought to be that of a frugivore, however it has been noted that its dentition and small body size supports the idea of requiring a highly selective browsing diet resembling other modern small artiodactyls.

Taxonomy

Hypisodus was named by Cope. It was assigned to Hypisodontinae by Matthew and to Hypertragulidae by Cope, Cook and Carroll.

Fossil distribution

Partial list of fossil sites: