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Ovoo gurvel

Reptilia - Squamata

Taxonomy
Ovoo gurvel was named by Norell et al. (2007). Its type specimen is IGM 3/767, a skull (partial skull with the braincase and mandibles missing), and it is a 3D body fossil. Its type locality is Little Ukhaa, which is in a Campanian terrestrial sandstone in the Djadokhta Formation of Mongolia. It is the type species of Ovoo.

Synonymy list
YearName and author
2007Ovoo gurvel Norell et al. pp. 3-10 figs. 4-6

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Sauropsida
RankNameAuthor
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Lepidosauromorpha(Benton 1983)
superorderLepidosauria()
orderSquamata
Episquamata
ToxicoferaVidal and Hedges 2005
suborderAnguimorphaFürbringer 1900
Anguiformes
infraorderPlatynotaBaur 1890
superfamilyVaranoideaGray 1827
genusOvoo
speciesgurvel

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Diagnosis
ReferenceDiagnosis
M. A. Norell et al. 2007Distinguished from Cherminotus longifrons and other closely related varanoids by the following character states: nasals paired; presence of aperture between premaxilla and maxilla (the premaxillary fenestra sensu Gauthier, 1982; see also Gao and Norell, 1998); anteromedial process of maxilla separating premaxilla from septomaxilla; dorsal septomaxillary foramen strongly reduced and close to midline (from Gao and Norell, 2000). Sharing with Aiolosaurus oriens character states including presence of a premaxilla-maxilla aperture; dorsal septomaxillary foramen strongly reduced and close to midline. Distinguished from Aiolosaurus oriens and other closely related varanoids by the following derived character states: presence of paired mystery bones roofing the nasal/frontal suture; absence of dermal sculpturing on the skull bones (region unpreserved in Aiolosaurus oriens); premaxillary nasal process broader than deep; premaxilla-maxilla aperture large and rounded; premaxillary teeth 12 (as opposed to 7 in Aiolosaurus oriens); maxillary teeth 12–13 (Aiolosaurus oriens 10 at most).
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Diet: carnivoresuperf
Reproduction: oviparoussuperf
Created: 2005-09-10 09:48:06
Modified: 2005-09-10 11:48:06
Source: superf = superfamily, subc = subclass, c = class, subp = subphylum
References: Kiessling 2004, Pianka and Vitt 2003, Carroll 1988, Hendy et al. 2009

Age range: Campanian or 83.60000 to 72.10000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Campanian83.6 - 72.1Mongolia (Omnogov Aimag) Ovoo gurvel (type locality: 117932)