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Aquilops americanus

Reptilia -

Taxonomy
Aquilops americanus was named by Farke et al. (2014). Its type specimen is . OMNH 34557, a partial skull (partial skull, with associated predentary, partial left dentary, and additional associated but unidentifiable fragments), and it is a 3D body fossil. Its type locality is OMNH locality V1057, which is in an Albian/Albian terrestrial claystone in the Cloverly Formation of Montana. It is the type species of Aquilops.

Synonymy list
YearName and author
2014Aquilops americanus Farke et al. p. 4–5 figs. 3-9
2015Aquilops americanus Han et al. p. 1

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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()
RankNameAuthor
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Ornithischia()
Neornithischia()
Clypeodonta
Cerapoda
Marginocephalia
Ceratopsia()
infraorderNeoceratopsia
genusAquilops
speciesamericanus

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. A. Farke et al. 2014A small neoceratopsian with the following autapomorphies: rostral with a ventrally-directed tip and a strongly arched keel possessing a boss; oral margin rostral to maxillary tooth row entirely concave in lateral view; antorbital fenestra more than twice as long as tall and tapering to a sharp point below the orbit.