H is for Harpagolestes – #AtoZChallenge – 2017 – Uintan Mammals

H is for Harpagolestes

So far, every fossil I’ve talked about has been a large, hoofed mammal. Well, something has to eat all those herbivores.

Thus enter Harpagolestes.

Harpagolestes immanis. Credit: Ryan Somma

Harpagolestes was a bear-sized, hyena-like mesonychid carnivore. For a long time, scientists thought that mesonychid carnivores were the ancestors of modern whales due to similarities in the teeth. (New analyses put whales more closely related to hoofed mammals.)

Harpagolestes immanis by Roman Uchytel

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