Probainognathidae
Probainognathidae is an extinct family of carnivorous cynodonts which lived during the Upper Triassic. It has three known members: Bonacynodon and Probainognathus from South America, and the somewhat later Lepagia from Europe. The family was established by Romer in 1973. Its members were closely related to Chiniquodontidae.
| Probainognathidae Temporal range: Early to Middle Triassic | |
|---|---|
 | |
| Bonacynodon skull | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Therapsida |
| Clade: | Cynodontia |
| Clade: | Probainognathia |
| Family: | †Probainognathidae Romer, 1973 |
| Genera | |
Restoration of Bonacynodon
All of the genera were small animals. Probainognathus, known from a number of specimens, was about 10 cm in length and very mammal-like in terms of its anatomy. Remains of Lepagia are restricted to teeth. These most closely resemble the dentition of other carnivorous cynodonts of the Upper Triassic.
References
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