The premaxillae and maxillae of Emydops are less pronounced than those of more mature dicynodonts, and they are generated downward as a distinct outer rim that is most developed around the canines.

[1] The temporal region is large in proportion to the face and provides attachment for the laterodorsal trigeminal musculature of enormous bulk.

In dorsal view, the temporal vacuities are described to be large and the ventrolateral region of the cheek is deeply excavated.

[6] Convergently evolved from cynodonts, dicynodonts also have a secondary palate which consists of a broad, flat, horizontal plate formed anteriorly by the palatines.

[2][3][4] The validity of E. minor and the twelve additional species before E. oweni was uncertain until two important revisions of small dicynodonts were released in 1993 by King and Rubidge (1993) and Keyser (1993).

[1][2] Eventually Angielczyk et al. (2005) was published, mentioning the possibility of E. arctatus [8] having priority over the other described species of Emydops.

[9] Biseridens Anomocephalus Tiarajudens Patranomodon Suminia Otsheria Ulemica Galepus Galechirus Galeops "Eodicynodon" oelofseni Eodicynodon oosthuizeni Colobodectes Lanthanostegus Chelydontops Endothiodon Pristerodon Diictodon Eosimops Prosictodon Robertia Emydops Dicynodontoides Kombuisia Myosaurus Cistecephalus Cistecephaloides Kawingasaurus Bidentalia Dicynodonts were dominant tetrapod herbivores most of the Upper Permian, thanks to their masticatory apparatus.

When Emydops ate, the cutting of material happened at the beak when the external adductor muscles applied a vertical force (jaw elevated).

[6] Later on in the masticatory cycle, the dentary teeth also did cutting when the external adductor muscles applied an even stronger horizontal force (jaw retracted).