After Conrad & Norell, 2007, with Recent species from Uetz, Etzold & Chenna, 1995-2000 [“The TIGR Reptile Database ” (former EMBL Reptile Database)]

<==o Iguania Gray, 1827 sensu Cope, 1864 (iguaanimaiset liskot)
   |-- Acrodonta Cope, 1864 sensu Alifanov, 2000, Zonneveld, Gunnell & Bartels, 2000, and Evans, Prasad & Manhas, 2002 (agamat ja kameleontit; agamas & chamaeleonids)
   `--o Pleurodonta Cope, 1864 sensu Conrad & Norell, 2007
      |-- Phrynosomatidae (konnaliskot)
      `--+-- Hoplocercidae Frost & Etheridge, 1989 (morunasaurs) [treated as Acrodonts by Alifanov, 2000, Zonneveld, Gunnell & Bartels, 2000, and Evans, Prasad & Manhas, 2002]
         `--+--o †Gobiguania Conrad & Norell, 2007
            |  |-- †Saichengurvel davidsoni Conrad & norell, 2007; U. Cret. EAs.
            |  `--+-- †Ctenomastax parva Gao & Norell, 2000; U. Cret. EAs.
            |     `--+-- †Temujinia ellisoni Gao & Norell, 2000; U. Cret. EAs.
            |        `--+-- †Anchaurosaurus gilmorei Gao & Hou, 1995; U. Cret. CAs.
            |           `-- †Zapsosaurus sceliphros Gao & Norell, 2000; U. Cret. EAs.
            `--+==o “Opluridae”
               |  |--+--o Chalarodon Peters, 1854 [paraphyletic Opluridae]
               |  |  |  |-- C. madagascariensis Peters, 1854
               |  |  |  `-- C. steinkampi Miralles, Glaw, Ratsoavina & Venes, 2015
               |  |  `--+-- †Polrussia mongoliensis Borsuk-Bialynicka & Alifanov, 1991; U. Cret. EAs
               |  |     `-- †Igua minuta Borsuk-Bialynicka & Alifanov, 1991; U. Cret. EAs.
               |  `--+--o Oplurus Cuvier, 1829; R. Mad. [paraphyletic Opluridae]
               |     |  |--o “Oplurus” -group [Spiny-tailed arboreal Oplurus]
               |     |  |  |-- O. cuvieri(Gray, 1831) (Collared iguanid)
               |     |  |  `-- O. cyclurus (Merrem, 1820) (Merrem's Madagascar swift)
               |     |  `--o “Saxicolous” -group [rock dwelling Oplurus]
               |     |     |-- O. fierinensis Grandidier, 1869 (Madagascar blue iguana)
               |     |     |-- O. grandidieri (Mocquard, 1900) (Grandidier's Madagascar swift)
               |     |     |-- O. quadrimaculatus Duméril & Bibron, 1851 (Duméril's Madagascar swift)
               |     |     `-- O. saxicola (Grandidier, 1869) (Marked Madagascar swift)
               |     `--o Tropiduridae
               |        |-- Leiocephalinae
               |        `--+-- Liolaeminae [Liolaemidae Frost, Etheridge, Janies & Titus, 2001]
               |           `-- Tropidurinae
               `--+-- Iguanidae Gray, 1827 sensu stricto (leguaanit)
                  `--+--o Crotaphytidae Smith & Brodie, 1982 [Iguanidae: Crotaphytinae] (Collared and Leopard Lizards)
                     |  |?-o Gambelia Baird, 1859 [Crotaphytus Holbrook, 1842 in partim] (leopard lizards)
                     |  |  |-- G. copeii (Yarrow, 1882) (Cope's leopard lizard)
                     |  |  |-- G. sila (Stejneger, 1890) (blunt-nosed leopard lizard)
                     |  |  `-- G. wislizenii (Baird & Girard, 1852) (long-nosed leopard lizard)
                     |  `--o Crotaphytus Holbrook, 1842 [Gambelia] ?L. Olig. Pleist. R. NA. (collared lizards)
                     |     |-- C. antiquus Axtell & Webb, 1995 (venerable collared lizard)
                     |     |-– C. bicinctores Smith & Tanner, 1972 (desert collared lizard)
                     |     |-- C. collaris (Say, 1823) (common collared lizard)
                     |     |-– C. dickersonae Schmidt, 1922 (Dickerson's collared lizard)
                     |     |-- C. grismeri McGuire, 1994 (Grismer's collared lizard)
                     |     |-- C. insularis Van Denburgh & Slevin, 1921 (Eastern collared lizard)
                     |     |-- C. nebrius Axtell & Montanucci, 1977 (Sonoran collared lizard)
                     |     |-- C. reticulatus Baird, 1858 (reticulated collared lizard)
                     |     `-- C. vestigium Smith & Tanner, 1972 (Baja collared lizard)
                     `--+-- Corytophanidae [Iguanidae: Corytophaninae] (Casquehead Lizards)
                        `-- Polychrotidae (Fitzinger, 1843) [Iguanidae: Anolinae, Polychrinae] (anoles, para-anoles, and relatives; anolisliskot)

Iguania incertae sedis :

(iguanians not yet added to the phylogenetic framework)

Arretosaurus ornatus Gilmore, 1943, U. Eoc. EAs. [Arretosauridae Gilmore, 1943]Cypressaurus Holman, 1972; L.Olig. NA. 
        †Cypressaurus hypsodontus Holman, 1972
        †Cypressaurus oligocenicusEuposaurus U.Jur. Eu. [Euposauridae] (nomen dubium, juveline Squamata & juveline Sphenodontida)
        †E. thiolleriE. cerinensisCadurciguana hoffstetteri  Auge, 1987; U.Eoc. WEu.
    †Harrisonsaurus fossilis Holman, 1981
    †ParadipsosaurusFries, Hibbard & Dunkle, 1955; Eoc. or Olig. NA. 
        †P. mexicanus Fries, 1955
    †Parasauromalus olseni Gilmore, 1928; L.-M. Eoc. NA. 
    †Pristiguana brasiliensis Estes & Price, 1973 U. Cret. SA. 
    †Swainiguanoides milleri Sullivan, 1982; M. Paleoc. NA.
    †Xihaina aquilonia Gao & Hou, 1995; U. Cret. CAs.


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