Cryptodontia Temporal range: Middle Permian - Late Triassic |
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Skull of Oudenodon latirostris | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Clade: | Synapsida |
Order: | Therapsida |
Infraorder: | †Dicynodontia |
Stem group: | †Bidentalia |
Clade: |
†Cryptodontia Owen, 1860 |
Subgroups | |
Synonyms | |
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Cryptodontia is a group of dicynodont therapsids that includes the families Geikiidae, Oudenodontidae, and Rhachiocephalidae. It was first named in 1860 by English paleontologist Richard Owen. Owen intended Cryptodontia to be a family, and the name was later changed to "Cryptodontidae" to reflect this ranking. The name Cryptodontia was restored in 2009 when it was redefined as a larger clade containing several families of dicynodonts.
Below is a cladogram from Kammerer et al. (2011) showing the phylogenetic placement of Cryptodontia: