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Nanuqsaurus hoglundi

Reptilia - Avetheropoda - Tyrannosauridae

Taxonomy
Nanuqsaurus hoglundi was named by Fiorillo and Tykoski (2014). Its type specimen is DMNH 21461, a partial skull (disarticulated parts of a skull including a piece of the ascending ramus (= nasal process, dorsal process) of the right maxilla, partial skull roof including pa), and it is a 3D body fossil. Its type locality is Kikak-Tegoseak Quarry, which is in a Maastrichtian delta plain siltstone/sandstone in the Prince Creek Formation of Alaska. It is the type species of Nanuqsaurus.

Synonymy list
YearName and author
2014Nanuqsaurus hoglundi Fiorillo and Tykoski p. 3 figs. 3-5
2016Nanuqsaurus hoglundi Mori et al. p. 29
2017Nanuqsaurus hoglandii Carr et al. p. 9s

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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
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
RankNameAuthor
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
AverostraPaul 2002
Tetanurae
orderAvetheropoda
suborderCoelurosauria
superfamilyTyrannosauroidea
familyTyrannosauridae
subfamilyTyrannosaurinae
genusNanuqsaurus
specieshoglundi

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
A. R. Fiorillo and R. S. Tykoski 2014A small (estimated skull length 600 mm–700 mm in mature individuals) tyrannosaurine theropod diagnosed by the following characters: thin, rostrally-forked, median spur of the fused parietals on the dorsal skull roof that overlaps and separates the frontals within the sagittal crest; frontal with a long, rostrally-pointed process separating the prefrontal and lacrimal facets; first two dentary teeth/alveoli much smaller (measured as maximum mesiodistal length) than dentary teeth/alveoli 3 through 9 in mature individuals, such that the mesiodistal length of alveolus 1 is less than 35 percent that of alveolus 3 and 25 percent or less that of alveolus 4, and such that the mesiodistal length of alveolus 2 is less than 50 percent that of alveolus 3 and 33 percent or less that of alveolus 4.