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Anomodontia was named by Owen (1859).

It was reranked as the suborder Anomodontia by Zittel (1890), Gregory (1910), Nopcsa (1923), Huene (1954), Haughton and Brink (1954), Watson and Romer (1956), Olson (1962), Olson (1966), Barry (1974), Kemp (1982) and Battail and Surkov (2000); it was reranked as the superorder Anomodontia by Osborn (1903), Osborn (1904), Hopson (1999) and Rubidge and Sidor (2001); it was synonymized subjectively with Theromorpha by Swinton (1934) and Kuhn (1946); it was reranked as the unranked clade Anomodontia by Rybczynski (2000), Kammerer and Angielczyk (2009), Angielczyk and Rubidge (2010), Kammerer et al. (2011), Fröbisch and Reisz (2011) and Kammerer et al. (2013).

It was assigned to Rhamphosauria by Haeckel (1866); to Theromorpha by Zittel (1890); to Reptilia by Owen (1861), Cope (1871), Cope (1875), Günther (1886) and Woodward (1898); to Synapsida by Osborn (1903), Osborn (1903) and Osborn (1904); to Chainosauria by Nopcsa (1923); to Therapsida by Broom (1913), Roxo (1937), Haughton and Brink (1954) and Watson and Romer (1956); to Theriodonta by Olson (1966); to Therapsida by Gregory (1910), Huene (1954), Olson (1962), Barry (1974), Kemp (1982) and Battail and Surkov (2000); to Neotherapsida by Hopson (1999) and Rubidge and Sidor (2001); to Dinomorpha by Ivakhnenko (2003) and Ivakhnenko (2008); and to Therapsida by Rybczynski (2000), Kammerer and Angielczyk (2009), Angielczyk and Rubidge (2010), Kammerer et al. (2011), Fröbisch and Reisz (2011) and Kammerer et al. (2013).

Synonymy list
YearName and author
1859Anomodontia Owen
1861Anomodontia Owen p. 255
1866Anomodontia Haeckel p. CXXXVIII
1871Anomodontia Cope p. 235
1875Anomodontia Cope p. 15
1886Anomodontia Günther p. 442
1890Anomodontia Zittel p. 449
1898Anomodontia Woodward p. 141
1903Anomodontia Osborn p. 276
1904Anomodontia Osborn p. 101
1910Anomodontia Gregory p. 464
1913Anomodontia Broom
1923Anomodontia Nopcsa
1937Anomodontia Roxo p. 43
1954Anomodontia Haughton and Brink p. 5
1954Anomodontia Huene p. 31
1956Anomodontia Watson and Romer p. 76
1962Anomodontia Olson pp. 48, 84, 89
1966Anomodontia Olson p. 302
1974Anomodontia Barry p. 121
1982Anomodontia Kemp p. 348
1997Biseridensidae Li and Cheng pp. 269, 277
1999Anomodontia Hopson p. 1257
2000Anomodontia Battail and Surkov
2000Anomodontia Rybczynski p. 199
2001Biseridensidae Li p. 47
2001Anomodontia Rubidge and Sidor
2003Anomodontia Ivakhnenko
2003Biseridensidae Ivakhnenko
2008Anomodontia Ivakhnenko
2008Biseridensidae Li and Sun p. 380
2009Anomodontia Kammerer and Angielczyk p. 1605
2010Anomodontia Angielczyk and Rubidge
2011Anomodontia Fröbisch and Reisz
2011Anomodontia Kammerer et al.
2013Anomodontia Kammerer et al. p. 3

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phylumChordataHaeckel 1847
subclassDipnotetrapodomorpha(Nelson 2006)
Anomodontia(Owen 1859)
Anomodontia(Owen 1859)

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 1861Teeth wanting, or limited to a single maxillary pair, having the form or proportions of tusks: a "foramen parietale;" two external nostrils; tympanic pedicle fixed; vertebrae biconcave; trunk-ribs long and curved, the anterior ones with a bifurcate head; sacrum of more than two vertebrae. Limbs ambulatory.
N. N. Rybczynski 2000Therapsids with preorbital lengths of 40% or less of total skull length; mandibular fenestra between dentary and angular; coronoid bone reduced or absent; zygomatic process rod-like and displaced dorsally; homodont dentition; teeth peg-like; dorsal part of quadratojugal expanded transversely; palatine extends further posteriorly than ectopterygoid; no pterygoid teeth.
C. F. Kammerer and K. D. Angielczyk 2009Only three phylogenetic analyses (Modesto et al. 1999; Fröbisch 2007; Fröbisch & Reisz 2008) have included Anomocephalus africanus, the most basal anomodont recognized to date, and we use these papers as sources of autapomorphies for Anomodontia. The most consistently cited autapomorphies of Anomodontia are: (1) serrations absent on marginal teeth; (2) mandibular fenestra present; (3) zygomatic arch bowed dorsally.