Tapinocaninus
Tapinocaninus was a genus of tapinocephalid therapsid from the Middle Permian. Its type and only species is T. pamelae. Its known specimens were found in the Karoo Supergroup in South Africa. Tapinocaninus is the largest known therapsid from the Guadalupian Period.
The generic name Tapinocaninus means humble (tapino) canine (caninus). The specific name pamelae was named for Pam Rubridge, the mother of the original describer, Bruce S. Rubridge. She was on the field when he discovered the first fossils.
Most known Tapinocaninus fossils consist of skulls, though its spine of 36 vertebrae, several ribs, pectoral and pelvic girdles, three humeri, and a femur have been discovered. Its autapomorphies include a relatively large temporal opening, only having two sacral vertebrae, only seven caudal vertebrae, a notably high amount of vertebral intercentra, an anterior coracoid included in the glenoid, which is straight and facing posteroventrally, and the lack of ectepicondylar foramen.
Tapinocaninus has been recovered as the most basal member of Tapinocephalidae, as it has both derived dinocephalian features and ancestral features of sphenacodonts. Tapinocephalidae itself is the most derived family of Dinocephalia.
Original paper: Rubridge 1991, Postcranial materials description 2019
Wikipedia article: here