Hyaenodon

Common card · No. 302380

Hyaenodon ("hyena-tooth") is an extinct genus of carnivorous placental mammals from the tribe Hyaenodontini, part of the subfamily Hyaenodontinae (which is within the family Hyaenodontidae), that belonged to the now extinct order Hyaenodonta. The genus was found lived in Eurasia and North America from the Middle Eocene to the Late Miocene, from 38 to 11.4 million years ago, existing for 26.6 million years. Hyaenodon was thought to have evolved in Asia, probably evolving from Propterodon. The genus currently consists of at least 40 species, although due to sexual dimorphism and intraspecific variation, there were likely fewer species within the genus. The species within the genus ranged in size from H. lingaoensis to H. gigas and H. mongoliensis, which were estimated to be similar in size to Hyainailouros. Smaller species, such as H. microdon, were small predators, having to compete with contemporary small carnivorans. On the other hand, the largest species were likely the apex predators...

Read on Wikipedia · Image Daderot, CC0