2010. Temertassetiidae. - Korn, Bockwinkel & Ebbighausen, p. 75.

Diagnosis. Usually thickly discoidal or thinly pachyconic; involute to subevolute conch, rarely discoidal. Umbilical margin often angular; aperture moderately high or high. Steinkern often with strong constrictions, weak reabs in some species. Suture with V-shaped external love with slightly sinuous flanks; prongs of the external lobe often hook-shaped; median saddle very low to moderately low.

differs from the families Pericyclidae and Muensteroceratidae mainly in the suture, which possesses flexed flanks of the external lobe