| Kenyapotamus Temporal range: Middle Miocene to Late Miocene |
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|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Artiodactyla |
| Family: | Hippopotamidae |
| Subfamily: | Kenyapotaminae |
| Genus: | Kenyapotamus Pickford, 1983[1] |
| Species | |
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K coryndoni and |
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Kenyapotamus is a possible ancestor of living hippopotamids that lived in Africa roughly 16 million to 8 million years ago during the Miocene epoch. Its name reflects that its fossils were first found in modern-day Kenya.
Although little is known about the Kenyapotamus, its dental pattern bore similarities to that of the genus Xenohyus, a European tayassuid from the Early Miocene. This led some scientists to conclude that hippopotami were most closely related to modern peccaries and pigs[2].
Recent molecular research has suggested that hippopotamids are more closely related to cetaceans than to other artiodactyls. A morphological analysis of fossil artiodactyls and whales, which also included Kenyapotamus, strongly supported a relationship between hippopotamids and the anatomically similar family Anthracotheriidae. Two archaic whales (Pakicetus and Artiocetus) formed the sister group of the hippopotamid-anthracotheriid clade, but this relationship was weakly supported.[3]