Anchaurosaurus

Extinct genus of lizards

Anchaurosaurus
Temporal range: Late Cretaceous
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Squamata
Suborder: Iguania
Clade: Gobiguania
Genus: Anchaurosaurus
Gao and Hou, 1995
Type species
Anchaurosaurus gilmorei
Gao and Hou, 1995

Anchaurosaurus (meaning "morning lizard" in Latin) is an extinct genus of iguanian lizard from the Late Cretaceous of Inner Mongolia, China. It belongs to an extinct clade of iguanians called Gobiguania that was endemic to the Gobi Desert during the Late Cretaceous.[1] The type species, Anchaurosaurus gilmorei, was named in 1995 on the basis of a well-preserved skull and incomplete skeleton from the Djadochta Formation. Compared to other iguanians, Anchaurosaurus has a relatively elongated skull, large eye sockets, and higher tooth crowns.[2] Phylogenetic analysis indicates that among gobiguanians, Anchaurosaurus is most closely related to Zapsosaurus from Mongolia. Below is a cladogram from Daza et al. (2012) showing the phylogenetic relationships of Anchaurosaurus:[3]

References

  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.
  2. ^ Keqin, Gao; Lianhai, Hou (1995). "Iguanians from the Upper Cretaceous Djadochta Formation, Gobi Desert, China". Journal of Vertebrate Paleontology. 15 (1): 57–78. Bibcode:1995JVPal..15...57K. doi:10.1080/02724634.1995.10011207.
  3. ^ 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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Extinct squamate genera
Acrodonta
Agamidae
Pleurodonta / Iguanoidea
Corytophanidae
Gobiguania
Iguanidae
Phrynosomatidae
Other extinct iguanians
Arretosauridae
  • Arretosaurus
  • Dornosaurus
  • Ergiliinsaurus
  • Khaichinguana
Priscagamidae
Armandisaurus explorator
Chamopsiidae
Gilmoreteiidae / "macrocephalosaurines"
"Polyglyphanodontines"
Other polyglyphanodontians
  • Adamisaurus
  • Funiusaurus
  • Gobinatus
  • Obamadon
  • Olindalacerta?
  • Paleochelco?
  • Peneteius
  • Tchingisaurus
  • Tianyusaurus
  • Tijubina?
  • Tripennaculus
Scincogekkonomorpha
Scleroglossa
Gekkonomorpha
Gekkota
Stem Autarchoglossa
(Evansauria)
  • Parmeosaurus
  • Tepexisaurus
  • Tijubina?
Bainguidae?
Cordyloidea
  • Eocordyla
  • Ornatocephalus
  • Sakurasaurus
Lacertoidea
Amphisbaenia
  • Oligodontosaurus
  • Todrasaurus
Amphisbaenidae
Bipedidae
Blanidae
  • Blanosaurus
  • Cuvieribaena
  • Louisamphisbaena
Chthonophidae
Rhineuridae
Polyodontobaenidae
  • Polyodontobaena
Contogeniidae
  • Contogenys
  • Palaeoscincosaurus
  • Utahgenys
Lacertidae
  • Amblyolacerta
  • Camptognathosaurus?
  • Dormaalisaurus
  • Dracaenosaurus
  • Escampcerta
  • Gracilicerta
  • Ligerosaurus
  • Maioricalacerta
  • Mediolacerta
  • Plesiolacerta
  • Pseudeumeces
  • Pseudolacerta
  • Quercycerta
Teiidae
Barbatteiidae
Xantusiidae
Scincoidea
Scincidae
Other scincomorphs
Paramacellodidae
Basal anguimorphs
Mosasauroidea?
Neoanguimorpha
Carusioidea
Xenosauridae
  • Entomophontes
  • Exostinus
  • Restes
Anguidae
Anguinae
Diploglossinae
  • Apodosauriscus
  • Eodiploglossus
Gerrhonotinae
  • Paragerrhonotus
  • Parophisaurus
Glyptosaurinae
Paleoanguimorpha
Basal varanoids / platynotans
Shinisauria?
Goannasauria
Basal Goannasaurians
Varanoidea
Lanthanotidae
Varanidae
Other platynotans / varanoids
Aigialosaurus dalmaticus

Plioplatecarpus primaevus Estesia mongoliensis Telmasaurus grangeri

Varanus priscus
Indeterminate squamates
Taxon identifiers
Anchaurosaurus


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