Saotherium

Saotherium is an extinct genus of hippopotamid from the Early Pliocene of Africa, specifically Chad. It is represented by a single species, S. mingoz. The earliest fossils appear at the start of the Pliocene, while the latest are dated to about 4 mya.

Saotherium was a small hippopotamid similar to the pygmy hippopotamus in size and morphology. The elongated shape of its brain case and the relatively large orbits suggest a possible evolutionary relationship with the latter.