Prosictodon dubei was named by Angielczyk and Rubidge (2010) [Small dicynodonts characterized by the following combination of primitive and derived characters: postorbitals slope ventrolaterally and overlap parietals nearly completely; lateral anterior palatal ridges present; median anterior palatal ridges present and converge with posterior median palatal ridge, forming a V-shaped structure; posterior median ridge with flattened anterior area present; anterior edge of caniniform process set off from palatal rim forming a notch; ‘postcanine’ teeth present on the maxilla and arranged in a short row that trends anteromedially to posterolaterally; postcaniniform crest or keel absent; mid-ventral plate of vomers relatively wide and trough-like; interpterygoid vacuity relatively short and does not reach level of the palatine pads; dentary table present as an elongate grooved surface on the dorsal surface of the dentary bounded laterally by a low ridge and medially by a tall, thin, dorsally convex blade; ‘postcanine’ teeth present on dentary blade; posterior dentary sulcus absent. The reversal to a short interpterygoid vacuity is an autapomorphy of P. dubei among pylaecephalids. Further distinguished from Diictodon by the presence of ‘postcanine’ teeth on maxillae and dentaries, larger pterygoid flange, and trough-like mid-ventral vomerine plate. Further distinguished from Robertia by more extensive overlap of the parietals by the postorbitals and more triangular pterygoid flange.]. Its type specimen is BP/1/5589, a skull (skull and mandible), and it is a 3D body fossil. It is the type species of Prosictodon.