|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was reranked as the unranked clade Bidentalia by Kammerer and Angielczyk (2009), Kammerer et al. (2011) and Fröbisch and Reisz (2011).
It was assigned to Anomodontia by Owen (1876); to Dicynodontia by Kammerer et al. (2011); and to Therochelonia by Kammerer and Angielczyk (2009) and Fröbisch and Reisz (2011).
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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 1876||A long ever-groeing tusk in each maxillary; premaxillaries connate, forming with the lower jaw a beack-shaped mouth, probably sheathed with horn. Sacrum of more than two vertebrae amphicoelian; limbs ambulatory.|
|C. F. Kammerer and K. D. Angielczyk 2009||Autapomorphies of Bidentalia recognized in common by Angielczyk (2007), Fröbisch (2007), and Fröbisch & Reisz (2008) are: (1) paired anterior palatal ridges that do not converge posteriorly present on the premaxilla; (2) postorbitals slope ventrolaterally and overlap parietals nearly completely.|