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Kosmoceratops

Reptilia - Ceratopsidae

Synonymy list
YearName and author
2010Kosmoceratops Sampson et al. p. 3
2011Kosmoceratops Maidment and Barrett p. 2
2014Kosmoceratops Longrich p. 298–299

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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()
RankNameAuthor
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Marginocephalia
—Ceratopsia()
infraorderNeoceratopsia
—Coronosauria
superfamilyCeratopsoidea
familyCeratopsidae
subfamilyChasmosaurinae
genusKosmoceratops

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.

G. †Kosmoceratops Sampson et al. 2010
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†Kosmoceratops richardsoni Sampson et al. 2010
Diagnosis
ReferenceDiagnosis
N. R. Longrich 2014Chasmosaurine ceratopsid exhibiting the following derived characters: premaxillary beak triangular, with rostral pointed and apex projecting anteroventrally; narial strut caudally inclined; narial process of premaxilla a triangular, posterodorsally projecting prong. Internal naris tall, narrow and posteriorly inclined. Nasal ornament posteriorly placed. Supraorbital horncores dorsolaterally directed and curving downwards. Lateral temporal fenestrae tall and narrow. Parietosquamosal frill short, with small parietal fenestrae. Squamosals strongly curved in lateral view and lateral margins parallel in dorsal view. Parietal does not project past squamosals; posterior margin V-shaped, with emargination spanning the whole width of the parietal. Squamosal epoccipitals increase in size posteriorly. Posterior margin of frill with ten hornlike, forward-curving epoccipitals with prominent sulci and representing p1ep3, an eps, and s1, epiparietals with bases coalesced.