Named By: P. K. Tchudinov - 1960.
Classification: Chordata, Therapsida, Dinocephalia, Anteosauridae.
Species: A. praeventor (type).
Size: Skull 30 centimetres long. Body estimated between 1.5 and 2 meters long.
Known locations: Russia, Perm.
Time period: Wordian of the Permian.
Fossil representation: Partial skull (PIN 1758/3).
So far Archaeosyodon is only known by an incomplete skull, but it is still enough to clearly identify this as a dinocephalian therapsid. As such, Archaeosyodon would have been a predator of other therapsids and possibly other kinds of vertebrates during the Permian.
- Upper Permian therapsids of the Ezhovo locality, P. K. Tchudinov - 1960.