Probainognathus

Probainognathus is a genus of meat-eating ‘mammal-like reptile’, (Therapsids), which lived during the lower Upper Triassic of South America. This creature had an incipient squamosal-dentary jaw-cranium[?] joint, which is a clearly mammalian anatomical feature.
It was at the very least closely related to the family of Chiniquodontidae, in which some authors have included it. Some broadly similar teeth from Europe were described under the name of Lepagia.

Genus: Probainognathus

Species: Probainognathus jenseni Romer, 1970
Place: Chanares & Ischigualasto Formations
Country: Argentina
Age: Carnian, Upper Triassic
Remarks: Known from about three dozen specimens, this creature was only about 10cm long. Two skulls, including the holotype[?], were stolen from the University of La Rioja, Argentina, in Feburary 1994. A pair of Probelesodon[?] holotypes, (P. lewisi and P. minor), accompanied them.
Reference: Romer (1970): The Chanares (Argentina) Triassic reptile fauna. VI. A cynodont with an incipient squamosal-dentary articulation. Breviora 344, p.1-18.

(This information has been derived from [1] (http://home.arcor.de/ktdykes/cynoga.htm) TRIASSIC CYNODONTS; Cynognathidae, Probainognathidae and ‘Allies’, an internet directory. As that's my webpage, there are no issues of copyright. Trevor Dykes)