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Polrussia mongoliensis

Osteichthyes

Taxonomy
Polrussia mongoliensis was named by Borsuk-Bialynicka and Alifanov (1991). Its type specimen is ZPAL MgR-I/119, a skull (ZPAL MgR-I/119), and it is a 3D body fossil. Its type locality is Khulsan (general) [PMPE], which is in a Campanian/Campanian eolian sandstone/sandstone in the Baruungoyot Formation of Mongolia. It is the type species of Polrussia.

Synonymy list
YearName and author
1991Polrussia mongoliensis Borsuk-Bialynicka and Alifanov
2000Polrussia mongoliensis Gao and Norell p. 31

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
RankNameAuthor
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
—Squamata()
—IguanomorphaSukhanov 1961
genusPolrussia
speciesmongoliensis

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.

†Polrussia mongoliensis Borsuk-Bialynicka and Alifanov 1991
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Diagnosis
ReferenceDiagnosis
K. Gao and M. A. Norell 2000Distinguished from other nonacrodontan iguanians by the following derived character states: frontals slenderly elongate and strongly narrowed; spheno-occipital tubercle greatly reduced as remnant knob; splenial retracted to slightly anterior to posterior end of tooth row; Meckelian canal entirely closed by fusion of dentary tube; posterior extension of dentary terminates at level of dorsal process of coronoid; marginal teeth having slenderly cylindrical shafts and pointedly unicuspid crowns.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Created: 2017-04-17 15:15:35
Modified: 2017-04-17 15:15:35
Source: c = class, subp = subphylum, uc = unranked clade
References: Kiessling 2004, Hendy et al. 2009, Carroll 1988

Age range: base of the Middle Campanian to the top of the Late/Upper Campanian or 83.60000 to 72.20000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Middle Campanian - Late/Upper Campanian83.6 - 72.2Mongolia (Omnogov) Polrussia mongoliensis (type locality: 13776 62913)