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Lacertilia (lizard)

Reptilia - Squamata

Taxonomy
Lacertilia was named by Owen (1842). It is extant. It was considered monophyletic by Prothero and Estes (1980).

It was corrected as Lacerti by Jaekel (1910); it was synonymized subjectively with Sauria by Kuhn (1966) and Dundee (1989); it was synonymized subjectively with Sauria by Sulimski (1975) and Lingham-Soliar (1994); it was reranked as the unranked clade Lacertilia by Sullivan (1986), Nicholls and Meckert (2002) and Augé and Rage (2006); it was reranked as the suborder Lacertilia by Zittel (1890), Woodward (1898), Osborn (1903), Lambe (1908), Swinton (1934), Roxo (1937), Kuhn (1946), Huene (1954), Miller (1967), Seiffert (1975), Carroll and Galton (1977), Prothero and Estes (1980), Thurmond and Jones (1981), Carroll (1982), Estes (1983), Stritzke (1983), Carroll (1988), Gao and Fox (1991), Gao and Fox (1996), Frank and Ramus (1996), Gao and Hou (1996), Peng et al. (2001), Venczel and Stiuca (2008) and Böhme (2010).

It was assigned to Lepidosauria by Zittel (1890); to Squamata by Osborn (1903) and Osborn (1904); to Lyognatha by Jaekel (1910); to Squamata by Miller (1967); to Sauria by Estes (1983); to Sauria by Sullivan (1986); to Squamata by Nicholls and Meckert (2002); to Reptilia by Owen (1861), Cope (1871), Cope (1875), Günther (1886) and Augé and Rage (2006); and to Squamata by Woodward (1898), Osborn (1903), Lambe (1908), Swinton (1934), Roxo (1937), Kuhn (1946), Huene (1954), Seiffert (1975), Carroll and Galton (1977), Prothero and Estes (1980), Thurmond and Jones (1981), Carroll (1982), Stritzke (1983), Carroll (1988), Gao and Fox (1991), Gao and Fox (1996), Frank and Ramus (1996), Gao and Hou (1996), Peng et al. (2001), Venczel and Stiuca (2008) and Böhme (2010).

Synonyms
Synonymy list
YearName and author
1842Lacertilia Owen
1861Lacertilia Owen p. 306
1871Lacertilia Cope p. 236
1873Diacium Cope p. 17
1873Cremastosaurus Cope p. 18
1873Cremastosaurus carinicollis Cope p. 18
1875Lacertilia Cope p. 17
1884Platyrhachis rhambastes Cope p. 779
1886Lacertilia Günther p. 444
1890Lacertilia Zittel p. 450
1892Iguanavus Marsh
1898Lacertilia Woodward p. 141
1903Lacertilia Osborn p. 276
1904Lacertilia Osborn p. 114
1908Lacertilia Lambe
1910Lacerti Jaekel p. 336
1928Iguanavus Gilmore p. 16
1928Cremastosaurus Gilmore p. 151
1928Cremastosaurus rhambastes Gilmore p. 152
1934Lacertilia Swinton p. 17
1937Lacertilia Roxo p. 43
1946Lacertilia Kuhn p. 60
1953Cremastosaurus Galbreath p. 39
1953Diacium Galbreath p. 39
1954Lacertilia Huene p. 62
1967Lacertilia Miller p. 227
1975Lacertilia Seiffert p. 9
1977Lacertilia Carroll and Galton
1980Lacertilia Prothero and Estes
1981Lacertilia Thurmond and Jones p. 148
1982Lacertilia Carroll p. 183
1983Lacertilia Estes
1983Lacertilia Stritzke
1986Lacertilia Sullivan p. 109
1988Iguanavus Carroll
1988Lacertilia Carroll
1991Lacertilia Gao and Fox
1996Lacertilia Frank and Ramus
1996Lacertilia Gao and Fox
1996Lacertilia Gao and Hou p. 580
2001Lacertilia Peng et al. p. 26
2002Lacertilia Nicholls and Meckert p. 1593
2006Lacertilia Augé and Rage p. 239
2008Lacertilia Venczel and Stiuca p. 750
2010Lacertilia Böhme p. 19

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
RankNameAuthor
Cotylosauria()
Amniota
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Lepidosauromorpha(Benton 1983)
superorderLepidosauria()
orderSquamata
suborderLacertilia(Owen 1842)
suborderLacertilia(Owen 1842)

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 1861Vertebrae proccelian, with a single transverse process on each side, and with single-headed ribs; sacral vertebrae not exceeding two; two external nostrils; a foramen parietale in most.