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Achelousaurus horneri

Reptilia - Ceratopsidae

Taxonomy
Achelousaurus horneri was named by Sampson (1994). It is not extant. Its type specimen is MOR 485. Its type locality is Landslide Butte Field Area (MOR TM-060), which is in a Campanian terrestrial siltstone in the Two Medicine Formation of Montana.

Synonymy list
YearName and author
1994Achelousaurus horneri Sampson p. 44A
1995Achelousaurus horneri Sampson
1997Achelousaurus horneri Vickaryous and Ryan p. 492
2001Achaelousaurus horneri Horner et al. p. 9
2001Achelousaurus horneri Trexler p. 303
2004Achelousaurus horneri Dodson et al. p. 495
2008Achelousaurus horneri Currie et al. p. 18
2009Achelousaurus horneri Hieronymus et al. p. 1371
2010Achelousaurus horneri Longrich p. 692 fig. 10
2010Achelousaurus horneri McDonald and Horner p. 156
2011Achelousaurus horneri Farke et al. p. 699

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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()
Ornithischia()
Neornithischia()
Clypeodonta
Cerapoda
Marginocephalia
Ceratopsia()
infraorderNeoceratopsia
Coronosauria
familyCeratopsidae
subfamilyCentrosaurinae
genusAchelousaurus
specieshorneri

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
No diagnoses are available