Aclistomycter is an extinct genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of oreodont

Oreodont

Oreodons, sometimes called prehistoric "ruminating hogs," were a family of cud-chewing plant-eater with a short face and tusk-like canine teeth...

 during the early Chadronian

Chadronian

The Chadronian age within the North American Land Mammal Ages chronology is the North American faunal stage typically set from 38,000,000 to 33,900,000 years BP, a period of . It is usually considered to fall within the Eocene epoch...

 subepoch (42—39.9 mya) existing for approximately .

Aclistomycter was a very small herbivorous

Herbivore

Herbivores are organisms that are anatomically and physiologically adapted to eat plant-based foods. Herbivory is a form of consumption in which an organism principally eats autotrophs such as plants, algae and photosynthesizing bacteria. More generally, organisms that feed on autotrophs in...

 artiodactyl with a short face, small, but tusk-like canine teeth, heavy body, and long tail, short feet.

Taxonomy

Aclistomycter was named and assigned to Merycoidodontidae by Wilson (1971) and Lander (1998)

Morphology

A single specimen was examined by M. Mendoza for body mass and estimated to have a weight of 87.9 kg (193.7 lbs).