Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Craniata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Subsectio: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauria
Ordo: †Ornithischia
Cladus: †Genasauria
Cladus: †Neornithischia
Cladus: †Cerapoda
Cladus: †Marginocephalia
Cladus: †Ceratopsia
Cladus: †Neoceratopsia
Superfamilia: †Ceratopsoidea
Familia: †Ceratopsidae
Subfamilia: †Centrosaurinae
Tribus: †Pachyrhinosaurini
Genus: †Einiosaurus
Species: E. procurvicornis
Name
Einiosaurus Sampson, 1995
Vernacular names
日本語: エイニオサウルス
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