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Cryptodontidae

- Cryptodontidae

Taxonomy
Cryptodontia was named by Owen (1861).

It was synonymized subjectively with Oudenodontidae by Cope (1871); it was reranked as the unranked clade Cryptodontia by Kammerer and Angielczyk (2009) and Kammerer et al. (2011); it was corrected as Cryptodontidae by Haughton and Brink (1954), Ivakhnenko (2003) and Carrano (2017).

It was assigned to Anomodontia by Haughton and Brink (1954); to Dicynodontoidea by Ivakhnenko (2003); to Bidentalia by Kammerer and Angielczyk (2009) and Kammerer et al. (2011); and to Anomodontia by Owen (1861) and Carrano (2017).

Synonymy list
YearName and author
1861Cryptodontia Owen p. 261
1954Cryptodontidae Haughton and Brink p. 6
2003Cryptodontidae Ivakhnenko
2009Cryptodontia Kammerer and Angielczyk
2011Cryptodontia Kammerer et al.
2017Cryptodontidae Carrano

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
RankNameAuthor
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
Therapsida()
Anomodontia(Owen 1859)
familyCryptodontidae()
familyCryptodontidae()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
R. Owen 1861Upper as well as lower jaws edentulous, or with inconspicuous teeth.
C. F. Kammerer and K. D. Angielczyk 2009The data sets of Angielczyk (2007), Fröbisch (2007), and Fröbisch & Reisz (2008)include the same three autapomorphies of Cryptodontia: (1) median ridge on anterior surface of the snout; (2)nasal bosses present as paired swellings near the dorsal or posterodorsal margin of external nares; (3)postcaniniform crest present.