Cryptodontia

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Cryptodontia
Temporal range: Middle Permian - Late Triassic
Oudenodon latirostris.jpg
Skull of Oudenodon latirostris
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Order: Therapsida
Infraorder: Dicynodontia
Stem group: Bidentalia
Clade: Cryptodontia
Owen, 1860
Subgroups

See text.

Synonyms
  • Cryptodontidae

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.[1]

Classification[edit]

Below is a cladogram from Kammerer et al. (2011) showing the phylogenetic placement of Cryptodontia:

Dicynodontia 


Eodicynodon




Pylaecephalidae




Eumantellidae




Endothiodontidae


 Therochelonia 

 Emydopoidea 


Emydopidae




Kingoriidae



Cistecephalidae



Myosauridae




 Bidentalia 

 Cryptodontia 


Rhachiocephalidae




Oudenodontidae



Geikiidae




 Dicynodontoidea 


"Dicynodon"




Lystrosauridae


 Kannemeyeriiformes 


Shansiodontidae



Kannemeyeriidae



Stahleckeriidae



Dinodontosauridae











References[edit]

  1. ^ Kammerer, C.F.; Angielczyk, K.D. (2009). "A proposed higher taxonomy of anomodont therapsids" (PDF). Zootaxa. 2018: 1–24.