Probainognathidae
Appearance
Probainognathidae Temporal range: Late Triassic
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Bonacynodon skull | |
Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Synapsida |
Clade: | Therapsida |
Clade: | Cynodontia |
Clade: | Probainognathia |
Family: | †Probainognathidae Romer, 1973 |
Genera | |
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/96/Bonacynodon_witout_visible_ears.png/220px-Bonacynodon_witout_visible_ears.png)
Probainognathidae is an extinct family of carnivorous cynodonts which lived during the Upper Triassic. Its members include Bonacynodon and Probainognathus from South America,[1] and possibly the somewhat later Lepagia from Europe. The family was established by Romer in 1973. Its members were closely related to the clade Prozostrodontia, which includes mammals.
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
- ^ Martinelli, A. G.; Soares, M. B.; Schwanke, C. (2016). "Two New Cynodonts (Therapsida) from the Middle-Early Late Triassic of Brazil and Comments on South American Probainognathians". PLOS ONE. 11 (10): e0162945. Bibcode:2016PLoSO..1162945M. doi:10.1371/journal.pone.0162945. ISSN 1932-6203. PMC 5051967. PMID 27706191.