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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.

Synonymy list
YearName and author
2014Aquilops americanus Farke et al. p. 4 figs. 3-9
2015Aquilops americanus Frederickson et al. p. 65
2015Aquilops americanus Han et al. p. 1
2020Aquilops americanus Yu et al. p. 1
2022Aquilops americanus Son et al. p. 7

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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()
RankNameAuthor
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—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.

†Aquilops americanus Farke et al. 2014
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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.
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
Adult length: 10 to < 100o
Adult width: 1.0 to < 10o
Adult height: 1.0 to < 10o
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: gregariouso
Environment: terrestrialsubo
Locomotion: actively mobileo
Life habit: ground dwellingsubo
Diet: herbivoresubo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2005-09-15 11:08:09
Modified: 2005-09-15 13:08:09
Source: subo = suborder, o = order
References: Norman and Weishampel 1991, Marsh 1875

Age range: base of the Middle Albian to the top of the Late/Upper Albian or 109.00000 to 99.60000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Middle Albian - Late/Upper Albian109.0 - 99.6USA (Montana) Aquilops americanus (type locality: 164673)