Bothriodontinae

Bothriodontinae Temporal range: Middle Eocene–Early Pliocene PreꞒ Ꞓ O S D C P T J K Pg N Survival in Hippopotamidae
Skull of Elomeryx
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Superfamily:	Hippopotamoidea
Family:	†Anthracotheriidae
Subfamily:	†Bothriodontinae Scott, 1940
Genera[1][2]
†Aepinacodon †Afromeryx †Bakalovia †Bothriodon †Bothriogenys †Brachyodus †Elomeryx †Epirigenys †Hemimeryx †Kukusepasutanka †Libycosaurus †Merycopotamus †Parabrachyodus †Qatraniodon †Sivameryx †Telmatodon †Ulausuodon

The bothriodontines are a paraphyletic assemblage of anthracotheres that originated from Eurasia in the late middle Eocene (Bartonian). The group can be distinguished from other anthracothere lineages by their upper molars having a mesostyle occupied by a transverse valley, selenodont cusps, a ventrally concave symphysis, elongated muzzles, and a diastema between the canine and first premolar tooth. During their evolution, the bothriodontines evolved from small basal forms such as Qatraniodon into larger taxa such as Libycosaurus and Merycopotamus. In some genera, the snouts became even more elongated and teeth specialized in a folivorous diet (e.g., Bothriodon, Aepinacodon), while others like Merycopotamus developed wide, heavy, and shallow muzzles with teeth more adapted for grazing.^[1]

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