Brontotherium

Brontotherium is a genus of brontothere that lived during the Eocene period. Male brontotheres have been observed very differently with females.

Other inhabitants

Two Brontotherium preparing to fight.

Brontotherium co-existed with Embolotherium, Indricotherium, Hyaenodon, Chalicotherium and Paraceratherium, as well as ocean-dwelling creatures like Dorudon, Basilosaurus and Otodus.

Brontotherium comes from Ancient Greek βροντή (brontḗ), meaning "thunder", and θηρίον (theríon), meaning "beast".

Megacerops-coloradensis.jpg

Restoration of M. coloradensis
Megacerops head reconstruction at AMNH.jpg

Megacerops head reconstruction at the American Museum of Natural History
Megacerops coloradensis skull 1 (cropped).jpg

AMNH 518, from South Dakota. This M. coloradensis specimen has a healed broken rib, not pictured here.