| Eucynodonts | |
|---|---|
 | |
| Examples of eucynodonts. 1st row:Trirachodon berryi,Probainognathus jenseni; | |
Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Synapsida |
| Clade: | Therapsida |
| Clade: | Cynodontia |
| Clade: | Epicynodontia |
| Clade: | Eucynodontia Kemp, 1982 |
| Subgroups | |
Eucynodontia ("true dog teeth") is aclade ofcynodonttherapsids including mammals and most non-mammalian cynodonts. The oldest eucynodonts are known from theEarly Triassic and possiblyLate Permian. Eucynodontia includes two major subgroups,Cynognathia andProbainognathia.[1]
The clade was named in 1982 byThomas Kemp, who defined it as all cynodonts more derived thanThrinaxodon.[2][3]
In 2001,Hopson andKitching redefined the clade Eucynodontia as the least inclusive group containingMammalia andExaeretodon.[4]
Cladogram after Stefanelloet al. (2023):[5]
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