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Canadaga arctica

Reptilia - Avetheropoda - Hesperornithidae

Taxonomy
Canadaga arctica was named by Hou (1999). Its type specimen is NMC 41050, a set of vertebrae (Three cervical vertebrae), and it is a 3D body fossil. Its type locality is Bylot Island, which is in a Maastrichtian prodelta horizon in the Kanguk Formation of Canada.

Synonymy list
YearName and author
1999Canadaga arctica Hou
2011Canadaga arctica Wilson et al. p. 12

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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
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
RankNameAuthor
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
AverostraPaul 2002
Tetanurae
orderAvetheropoda
suborderCoelurosauria
Maniraptora
Paraves
classAves
PygostyliaChiappe 2002
Ornithothoraces
OrnithuromorphaChiappe et al. 1999
subclassOrnithurae
orderHesperornithiformesFürbringer 1888
familyHesperornithidae()
genusCanadaga
speciesarctica

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
L. E. Wilson et al. 2011A large hesperornithiform bird described from cervical vertebrae that each have the following character- istics: large, deep concavitas lateralis; large hyapophysis; presence of a fovea between the costal process and centrum (Hou 1999).