Gobiguania

Gobiguania; Temporal range: Late Cretaceous, 84.9–70.6 Ma PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Iguania
Clade:	Pleurodonta
Clade:	†Gobiguania; Conrad and Norell, 2007
Genera
	†Anchaurosaurus; †Ctenomastax; †Igua; †Isodontosaurus; †Polrussia; †Saichangurvel; †Temujinia; †Zapsosaurus

Gobiguania is an extinct clade of iguanian lizards from the Late Cretaceous. All known gobiguanians are endemic to the Gobi Desert of Mongolia. Gobiguania was given a phylogenetic definition by Jack Conrad and Mark Norell in 2007 as all taxa more closely related to Anchaurosaurus gilmorei than to Iguana iguana (the green iguana), Crotaphytus collaris (the common collared lizard), or Agama agama (the common agama). According to Conrad and Norell's phylogenetic analysis, Gobiguania includes Anchaurosaurus as well as several other Late Cretaceous lizards such as Ctenomastax, Temujinia, Saichangurvel, and Zapsosaurus.[1] A phylogenetic analysis published in 2012 indicated that three other lizard genera — Igua, Isodontosaurus, and Polrussia, all from Mongolia and all from the Late Cretaceous — are also gobiguanians. Below is a cladogram from the analysis:[2]

Iguania

†Hoyalacerta sanzi

	†Huehuecuetzpalli mixtecus

	†Pristiguana brasiliensis

Chamaeleontiformes

	†Priscagamidae

	Acrodonta

Iguanoidea (=Pleurodonta)

Silvaiguana

	Hoplocercidae

	Polychrotidae

†Gobiguania

†Polrussia mongoliensis

†Igua minuta

†Isodontosaurus gracilis

	†Anchaurosaurus gilmorei

	†Zapsosaurus sceliphros

†Saichangurvel davidsoni

	†Temujinia ellisoni

	†Ctenomastax parva

Euiguana

Corytophanidae

Terraiguana

	Iguanidae

	Crotaphytidae

Phrynosomatidae

Opluridae

†Uquiasaurus

Liolaemidae

	Leiocephalus

	Tropiduridae

References

Conrad, J. L.; Norell, M. A. (2007). "A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade". American Museum Novitates. 3584: 1. doi:10.1206/0003-0082(2007)3584[1:ACLCIS]2.0.CO;2. hdl:2246/5877.
Daza, J. D.; Abdala, V.; Arias, J. S.; García-López, D.; Ortiz, P. (2012). "Cladistic Analysis of Iguania and a Fossil Lizard from the Late Pliocene of Northwestern Argentina". Journal of Herpetology. 46: 104–119. doi:10.1670/10-112.

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[CN07-1] Conrad, J. L.; Norell, M. A. (2007). "A Complete Late Cretaceous Iguanian (Squamata, Reptilia) from the Gobi and Identification of a New Iguanian Clade". American Museum Novitates. 3584: 1. doi:10.1206/0003-0082(2007)3584[1:ACLCIS]2.0.CO;2. hdl:2246/5877.

[Detal12-2] Daza, J. D.; Abdala, V.; Arias, J. S.; García-López, D.; Ortiz, P. (2012). "Cladistic Analysis of Iguania and a Fossil Lizard from the Late Pliocene of Northwestern Argentina". Journal of Herpetology. 46: 104–119. doi:10.1670/10-112.