Named By: M. F. Ivakhnenko - 2008.
Classification: Chordata, Synapsida, Therapsida, Therocephalia, Whaitsiidae.
Species: M. patrichae (type).
Size: Skull estimated to be about 40 to 50 centimetres long.
Known locations: Russia.
Time period: Wuchiapingian of the Permian.
Fossil representation: Maxilla.
Megawhaitsia is a genus of therocephalian therapsid that lived in Russia during the Permian. At the time of its description, Megawhaitsia is only known from a single portion of maxilla, the tooth bearing bone of the upper jaw. However, reconstructions of the skull of Megawhaitsia based upon scaling to the maxilla have revealed that the skull would have been somewhere in the region of forty to fifty centimetres long, This alone indicates that by the standards of the Late Permian, Megawhaitsia would have been a very large predator.
- The First Whaitsiid (Therocephalia, Theromorpha) from the Terminal Permian of Eastern Europe. - Paleontological Journal 42(4):409-413. - M. F. Ivakhnenko - 2008.