Dinophoneus

Jonkeria is an extinct genus of dinocephalians. Jonkeria was a large and omnivorous animal, from the Tapinocephalus Assemblage Zone, Lower Beaufort Group, of the South African Karoo.

==Description== thumb|left|Life restoration of Jonkeria truculenta alt=|left|thumb|Skull of Jonkeria truculenta in the Field Museum of Natural History, Chicago The overall length was or more (up to ), the skull about 55 cm long. About 22% of the endocast volume of Jonkeria was filled by non-neural tissue. The skull is nearly twice as long as wide, and the snout is elongated and provided with sharp incisors and large canines. The cheek teeth were small. The body is robustly built, and the limbs stout. Jonkeria cannot be distinguished from its relative Titanosuchus on cranial grounds, but only in limb length; Jonkeria having short and squat limbs, and Titanosuchus long ones.