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Hesperornis montanus

Osteichthyes - Hesperornithiformes

Taxonomy
Hesperornis montana was named by Shufeldt (1915). Its type specimen is USNM 8199, a set of vertebrae (isolated dorsal vertebrae), and it is a 3D body fossil. Its type locality is One Mile Above the Mouth of Dog Creek, which is in a Campanian marine sandstone in the Claggett Formation of Montana.

It was corrected as Hesperornis montanus by Hay (1930).

Entered
by J. Alroy on 2008-12-09

Synonymy list
YearName and author
1915Hesperornis montana Shufeldt p. 293
1930Hesperornis montanus Hay p. 279
1940Hesperornis montana Wetmore p. 3
1956Hesperornis montana Wetmore p. 4

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

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.

Hesperornis montanus Shufeldt 1915
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Diagnosis
No diagnoses are available