|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
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).
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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.
|R. Owen 1861||Upper as well as lower jaws edentulous, or with inconspicuous teeth.|
|C. F. Kammerer and K. D. Angielczyk 2009||The 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.|