Archaeotherium

Description
Overall Description
These animals are sometimes called "hell pigs", but they are not pigs, instead being more like hippos and whales. 

Its head was large, with bony lumps on its cheeks and strong jaws for eating both meat and plants. 

Size
The biggest animals in the group Archaeotherium are a lot bigger than the smallest ones. The type species, A. mortoni, is quite small and slim. It is thought that it weighed around 150 kg (330 lb), and its skull was around 47 cm (19 in) long. The bigger kinds, those that used to be called Megachoreus, were much larger. A. zygomaticus's skull was around 78 cm (31 in). A. calkinsi is thought to have been stockier than other entelodonts. The biggest kind of Archaeotherium was A. trippensis.

References

Category:Paleontology
Category:Extinct mammals