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Canadaga arctica

Reptilia - Hesperornithiformes

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 [SCDP], 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()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
RankNameAuthor
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
—Maniraptora
—Paraves
classAves
—PygostyliaChiappe 2002
—Ornithothoraces
—OrnithuromorphaChiappe et al. 1999
subclassOrnithurae
orderHesperornithiformesFürbringer 1888
—Hesperornithidae()
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.

†Canadaga arctica Hou 1999
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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).