Igua is an extinct genus of iguanianlizards belonging to a group called Gobiguania that was endemic to the Gobi Desert during the Late Cretaceous. The type speciesIgua minuta was named in 1991 on the basis of a skull from the Barun Goyot Formation in Mongolia. The skull itself is very small, only 14 millimetres (0.55 in) long, and may have belonged to a juvenile given that it possesses a large fontanelle and that many of the bones are unfused. The snout-vent length of the individual (the total body length minus the tail) is estimated to have been 55 to 65 millimetres (2.2 to 2.6 in). Igua differs from related gobiguanians like Polrussia in having a more rounded skull. It is similar in appearance to the living genera Liolaemus and Tropidurus. The teeth are tricuspid and pleurodont, meaning they are attached to inner surfaces of the jaws.[1]
^Borsuk-Białynicka, M.; Alifanov, V.R. "First Asiatic 'iguanid' lizards in the Late Cretaceous of Mongolia". Acta Palaeontologica Polonica. 36 (3): 325–342.
^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. hdl:11336/61054. S2CID 85405843.
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igua, extinct, genus, iguanian, lizards, belonging, group, called, gobiguania, that, endemic, gobi, desert, during, late, cretaceous, type, species, minuta, named, 1991, basis, skull, from, barun, goyot, formation, mongolia, skull, itself, very, small, only, m. Igua is an extinct genus of iguanian lizards belonging to a group called Gobiguania that was endemic to the Gobi Desert during the Late Cretaceous The type species Igua minuta was named in 1991 on the basis of a skull from the Barun Goyot Formation in Mongolia The skull itself is very small only 14 millimetres 0 55 in long and may have belonged to a juvenile given that it possesses a large fontanelle and that many of the bones are unfused The snout vent length of the individual the total body length minus the tail is estimated to have been 55 to 65 millimetres 2 2 to 2 6 in Igua differs from related gobiguanians like Polrussia in having a more rounded skull It is similar in appearance to the living genera Liolaemus and Tropidurus The teeth are tricuspid and pleurodont meaning they are attached to inner surfaces of the jaws 1 IguaTemporal range Late CretaceousScientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ReptiliaOrder SquamataSuborder IguaniaClade GobiguaniaGenus IguaBorsuk Bialynicka and Alifanov 1991Type species Igua minutaBorsuk Bialynicka and Alifanov 1991Below is a cladogram from Daza et al 2012 showing the phylogenetic relationships of Igua 2 Iguania Hoyalacerta sanzi Huehuecuetzpalli mixtecus Pristiguana brasiliensisChamaeleontiformes PriscagamidaeAcrodontaIguanoidea Pleurodonta Silvaiguana HoplocercidaePolychrotidae Gobiguania Polrussia mongoliensis Igua minuta Isodontosaurus gracilis Anchaurosaurus gilmorei Zapsosaurus sceliphros Saichangurvel davidsoni Temujinia ellisoni Ctenomastax parvaEuiguana CorytophanidaeTerraiguanaIguanidaeCrotaphytidaePhrynosomatidaeOpluridae UquiasaurusLiolaemidaeLeiocephalusTropiduridaeReferences edit nbsp Palaeontology portal Borsuk Bialynicka M Alifanov V R First Asiatic iguanid lizards in the Late Cretaceous of Mongolia Acta Palaeontologica Polonica 36 3 325 342 Daza J D Abdala V Arias J S Garcia Lopez 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 hdl 11336 61054 S2CID 85405843 nbsp This article about a prehistoric lizard is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Igua amp oldid 1184030329, wikipedia, wiki, book, books, library,
