Classification of the suborder Anguimorpha
Unr. Anguimorpha Fürbringer 1900
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Unr. Anguiformes Bonaparte 1831
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Superfm. †Anguioidea Fitzinger 1826
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Fm. Anguidae Gray 1825
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Subfm. †Anguinae Gray 1825
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Tr. †Anguini Augé 2005
G. Anguis Linnaeus 1758 [slow worm]
G. †Headonhillia Klembara and Green 2010
G. †Ophipseudopus Kuhn 1940
Tr. †Ophisaurini Augé 2005
G. †Parophisaurus Sullivan 1987
G. †Ragesaurus Bailon and Auge 2012
G. †Smithosaurus Vasilyan et al. 2022
Subfm. Anniellinae Nopcsa 1928
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G. Anniella Gray 1852 [legless lizard]
G. †Apodosauriscus Gauthier 1982
G. Barisia Gray 1838 [Alligator lizards]
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Barisia imbricata Wiegmann 1828 [Imbricate alligator lizard]
Subfm. †Diploglossinae Boucourt 1873
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G. Celestus Gray 1838
G. Diploglossus Wiegmann 1828
G. †Eodiploglossus Gauthier 1982
G. Ophiodes Boulenger 1894 [South American worm lizards]
G. Elgaria Gray 1838 [alligator lizard]
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Elgaria coerulea Wiegmann 1828 [Northern alligator lizard]
Elgaria kingii Gray 1838 [Madrean alligator lizard]
Elgaria multicarinata Blainville 1835 [southern alligator lizard]
Subfm. Gerrhonotinae Cope 1864
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G. Abronia Gray 1838 [Arboreal alligator lizards]
G. Barissia Gray
G. Coloptychon Peters 1877
G. Gerrhonotus Wiegmann 1828 [alligator lizard]
G. †Paragerrhonotus Estes 1963
Subfm. †Glyptosaurinae Marsh 1872
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G. †Arpadosaurus Meszoely 1970
G. †Eoglyptosaurus Sullivan 1979
Tr. †Glyptosaurini Sullivan 1979
G. †Glyptosaurus Marsh 1871
G. †Helodermoides Douglass 1903
Tr. †Melanosaurini Sullivan 1979
G. †Melanosaurus Gilmore 1928
G. †Paraglyptosaurus Sullivan 1979
G. †Placosaurus Gervais 1852
G. †Proxestops Gauthier 1982
G. †Sullivania Čerňanský et al. 2023
G. †Xestops Cope 1873
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Invalid names: Dimetopisaurus Hecht 1959 [synonym], Oreosaurus Marsh 1872 [replaced]
Invalid names: Diacium quinquepedale Cope 1874 [nomen dubium], Placosaurinae Gervais [synonym]
G. †Odaxosaurus Gilmore 1928
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†Odaxosaurus priscus Gao and Fox 1996
†Odaxosaurus roosevelti Nydam 2013
Invalid names: Pancelosaurus Meszoely 1970 [synonym]
G. †Ophisauromimus Cernansky et al. 2016
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†Ophisauromimus coderetensis Augé 2005
†Ophisauromimus frayssensis Augé 2005
Invalid names: Xestops lentus Marsh 1872 [nomen dubium], Xestops microdus Marsh 1872 [nomen dubium], Xestops minutus Marsh 1872 [nomen dubium], Xestops piercei Gilmore 1938 [nomen dubium]
Fm. †Dorsetisauridae Hoffstetter 1967
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G. †Dorsetisaurus Hoffstetter 1967
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†Dorsetisaurus hebetidens Hoffstetter 1967
†Dorsetisaurus purbeckensis Hoffstetter 1967
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Invalid names: Introrsisaurus pollicidens Seiffert 1975 [synonym]
Invalid names: Introrsisaurus Seiffert 1975 [synonym]
G. †Peltosaurus Cope 1873
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†Peltosaurus floridanus Vanzolini 1952
†Peltosaurus macrodon Brattstrom 1955
Invalid names: Anniellidae [empty], Diploglossa Cope 1864 [objective synonym]
Infraor. Platynota Baur 1890
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Fm. Shinisauridae Ahl 1930
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G. Shinisaurus Ahl 1930 [Chinese crocodile lizard]
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Shinisaurus crocodilurus Ahl 1930 [Chinese crocodile lizard]
Superfm. †Varanoidea Gray 1827
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G. Heloderma Wiegmann 1829 [beaded lizard]
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Heloderma horridum Wiegmann 1829 [Beaded lizard]
Heloderma suspectum Cope 1869 [Gila monster]
†Heloderma texana Stevens 1977
Invalid names: Trachyderma Wiedmann 1829 [replaced]
Subfm. †Saniwinae Camp 1923
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Fm. Varanidae Hardwicke and Gray 1824 [monitor lizard]
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G. †Archaeovaranus Dong et al. 2022
G. †Cherminotus Borsuk-Bialynicka 1984
G. Lanthanotus Steindachner 1877 [earless monitor lizard]
G. †Saniwides Borsuk-Bialynicka 1984
G. †Telmasaurus Gilmore 1943
G. Varanus Merrem 1820
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Invalid names: Iberovaranus Hoffstetter 1969 [synonym], Megalania Owen 1859 [synonym], Notiosaurus Owen 1884 [synonym]
Invalid names: Megalaninae Camp 1923 [empty], Varaninae [empty]
Invalid names: Helodermatidae Gray 1837 [empty], Helodermatoidea Baur 1890 [synonym], Lanthanotidae Steindachner 1878 [empty]
Invalid names: Shinisauria Conrad 2008 [empty]
Superfm. †Carusioidea Gao and Norell 1998
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G. †Chometokadmon Costa 1864
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G. †Entomophontes Smith and Gauthier 2013
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†Entomophontes hutchisoni Smith and Gauthier 2013
†Entomophontes incrustatus Smith and Gauthier 2013
Unr. Monstersauria Norell and Gao 1997
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Fm. †Necrosauridae Hoffstetter 1943
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G. †Necrosaurus Filhol 1876
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†Necrosaurus cayluxi Filhol 1873
†Necrosaurus eucarinatus Kuhn 1940
Invalid names: Necrosaurus filholi De Stefano 1903 [nomen dubium]
G. †Provaranosaurus Gilmore 1942
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†Provaranosaurus acutus Gilmore 1942
†Provaranosaurus fatuus Smith and Gauthier 2013
Invalid names: Melanosaurinae Gilmore 1928 [empty]
Fm. †Palaeovaranidae Georgalis 2017
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G. †Palaeovaranus Zittel 1887
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†Palaeovaranus cayluxi Zittel 1887
†Palaeovaranus lismonimenos Georgalis et al. 2021
Fm. †Paravaranidae Borsuk-Bialynicka 1984
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G. †Restes Gauthier 1982
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Fm. Xenosauridae Cope 1866
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G. †Exostinus Cope 1873
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†Exostinus lancensis Gilmore 1928
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Invalid names: Harpagosaurus parvus Gilmore 1928 [synonym], Prionosaurus regularis Gilmore 1928 [synonym]
†Exostinus serratus Cope 1873
Invalid names: Harpagosaurus Gilmore 1928 [synonym], Prionosaurus Gilmore 1928 [synonym]
Subfm. Xenosaurinae McDowell and Bogert 1954
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G. Xenosaurus Gray 1856 [American knob-scaled lizards]
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Xenosaurus agrenon King and Thompson 1968
Xenosaurus arboreus King and Thompson 1968 [King's knob-scaled lizard]
Xenosaurus grandis Gray 1856 [Knob-scaled lizard]
Xenosaurus newmanorum Taylor 1949 [Newman's knob-scaled lizard]
Xenosaurus platyceps King and Thompson 1968 [Flathead knob-scaled lizard]
Xenosaurus rackhami Stuart 1941 [Rackham's knob-scaled lizard]
Xenosaurus rectocollaris Smith and Iverson 1993 [Pallid knob-scaled lizard]
Invalid names: Hodzhakuliidae Alifanov 1993 [empty], Varaniformes Conrad 2008 [empty]