Lystrosaurus is an extinct genus of herbivorous dicynodont therapsids from the late Permian and Early Triassic epochs. It had a widespread distribution across Pangaea, with fossils having been found i
Therapsida is a major group of eupelycosaurian synapsids. It includes mammals, as well as their ancestors and close relatives. Many defining traits of modern mammals had their origins within early the
Holotype skull of Raranimus dashankouensis, the most basal-known therapsid
Restoration of Euchambersia with dicynodont prey. Note that this South African therocephalian is suspected to be the oldest-known venomous tetrapod.
Biarmosuchus, a biarmosuchian