Anthracokeryx is a genus of primitive ungulate and belonged to the family of Anthracotheriidae. It lived during the Eocene epoch of Asia and probably inhabited wet forests and swamps. In life, it would have resembled a very small hippopotamus, growing up to 30 cm in length, with a narrow head and pig-like features. They were probably bound to aquatic habitats, feeding on roots and aquatic vegetation.
Anthracokeryx birmanicus is the type species of the genus and fossils have been found in Myanmar. For a long time, the genus was considered to be a junior synonym of Anthracotherium due to its small size and relatable features, but many authors believe it belongs within its own genus.
Pilgrim & Cotter, 1916
Tsubamoto, T., Takai, M., Egi, N., SHIGEHARA, N., Tun, S. T., Aung, A. K., ... & Thein, T. (2002). The Anthracotheriidae (Mammalia; Artiodactyla) from the Eocene Pondaung Formation (Myanmar) and comments on some other anthracotheres from the Eocene of Asia. Paleontological Research, 6(4), 363-384.