Probainognathus
| Probainognathus Temporal range: Triassic | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Order: | Therapsida |
| Suborder: | Cynodontia |
| Family: | †Probainognathidae |
| Genus: | †Probainognathus Romer, 1970 |
| Species: | †P. jenseni |
| Binomial name | |
| Probainognathus jenseni Romer, 1970 | |
Probainognathus (Greek: "progressive jaw") is a genus of carnivorous cynodont therapsid that 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.
Known from about three dozen specimens, this creature was only about 10 cm long. Two skulls, including the holotype, were stolen from the University of La Rioja, Argentina, in February 1994. A pair of Probelesodon holotypes, (P. lewisi and P. minor), accompanied them.
References
- Romer (1970): "The Chanares (Argentina) Triassic reptile fauna. VI. A cynodont with an incipient squamosal-dentary articulation". Breviora 344, p. 1-18.
- Much of this information has been derived from the Internet directory TRIASSIC CYNODONTS: Cynognathidae, Probainognathidae and "Allies"
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