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Therochelonia

Therochelonia
Temporal range: Late Permian - Early Cretaceous
Cistecephalus1DB.jpg
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:

Eodicynodon

Pylaecephalidae

Eumantellidae

Endothiodontidae

Emydopidae

Kingoriidae

Cistecephalidae

Myosauridae

Rhachiocephalidae

Oudenodontidae

Geikiidae

"Dicynodon"

Lystrosauridae

Shansiodontidae

Kannemeyeriidae

Stahleckeriidae

Dinodontosauridae



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Wikipedia

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