Gobiguania

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Gobiguania
Temporal range: Late Cretaceous
Scientific classification e
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





Iguanidae



Crotaphytidae





Phrynosomatidae




Opluridae




Uquiasaurus




Liolaemidae




Leiocephalus



Tropiduridae













References[edit]

  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.  edit
  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. doi:10.1670/10-112.  edit