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.[1] Below is a simplified cladogram from Kammerer et al. (2011) showing the phylogenetic placement of Therochelonia:[2]
Therochelonia Temporal range:
| |
---|---|
Life restoration of Cistecephalus Cistecephalus microrhinus | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Synapsida |
Clade: | Therapsida |
Suborder: | †Anomodontia |
Clade: | †Dicynodontia |
Clade: | †Therochelonia Seeley, 1894 |
Subgroups | |
See text. |
References
edit- ^ Kammerer, C.F.; Angielczyk, K.D. (2009). "A proposed higher taxonomy of anomodont therapsids" (PDF). Zootaxa. 2018: 1–24.
- ^ Kammerer, C.F.; Angielczyk, K.D.; Fröbisch, J. (2011). "A comprehensive taxonomic revision of Dicynodon (Therapsida, Anomodontia) and its implications for dicynodont phylogeny, biogeography, and biostratigraphy". Journal of Vertebrate Paleontology. 31 (Suppl. 1): 1–158. Bibcode:2011JVPal..31S...1K. doi:10.1080/02724634.2011.627074. S2CID 84987497.