Therochelonia Temporal range: Late Permian - Early Cretaceous |
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Life restoration of Cistecephalus Cistecephalus microrhinus | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Order: | Therapsida |
Infraorder: | †Dicynodontia |
Parvorder: |
†Therochelonia Seeley, 1894 |
Subgroups | |
See text. |
See text.
Therochelonia is a group of dicynodont therapsids. The group was named by British paleontologist Harry Seeley in 1894 and fell into disuse in the following century. Therochelonia was redefined as a node-based clade in 2009. It is defined as the last common ancestor of Cistecephalus microrhinus and Dicynodon lacerticeps, and all of its descendants. Below is a simplified cladogram from Kammerer et al. (2011) showing the phylogenetic placement of Therochelonia: