Syodontinae is a group of dinocephalian therapsids. It is one of two subfamilies in the family Anteosauridae, the other being Anteosaurinae. They are known from the Middle Permian Period of what is now Russia and South Africa. One of the best known syodontines is Syodon from Russia. The South African form Austalosyodon
, is one of the earliest known Gondwan
Top left to right: Pampaphoneus, Notosyodon, and Australosyodon. Bottom left to right: Syodon biarmicum, Microsyodon, Syodon efremovi, and Archaeosyodon.
anteosaurs.