Ceratopsia or Ceratopia (/ˌsɛrəˈtɒpsiə/ or /ˌsɛrəˈtoʊpiə/; Greek: "horned faces") is a group of herbivorous, beaked dinosaurs that thrived in what are...

between 150.8 and 145.5 million years ago. Chaoyangsaurus belonged to the Ceratopsia (Greek for "horned faces"). Chaoyangsaurus, like all ceratopsians, was...

Press. ISBN 978-0-691-02882-8. Lull, R. S. (1933). "A revision of the Ceratopsia or horned dinosaurs". Memoirs of the Peabody Museum of Natural History...

skin impression samples. Chasmosaurus was in 1915 by Lambe within the Ceratopsia assigned to the Chasmosaurinae. The Chasmosaurinae usually have long frills...

(2010) proposed that the best assignment for the type material may be Ceratopsia incertae sedis. P. neimongoliensis and P. ordosensis? Two new species...

Marginocephalia and Ornithopoda. The former includes clades Pachycephalosauria and Ceratopsia, while the latter typically includes Hypsilophodon and the more derived...

animals butting each other's heads, as well as for display. Within the Ceratopsia, Achelousaurus lies within the clade Pachyrostra (or "thick-snouts")....

thigh bone bows outwards. Osborn originally assigned Pentaceratops to Ceratopsia. Within this group Pentaceratops belonged to the Ceratopsinae or Chasmosaurinae...

Marginocephalia: the thick-skulled Pachycephalosauria and the horned Ceratopsia. All members of Marginocephalia were primarily herbivores (though pachycephalosaurs...

the history of dinosaurs, since it is the type genus for which both the Ceratopsia and the Ceratopsidae have been named. The first remains referred to Ceratops...

"New dinosaur from southern Alberta, representing a new family of the Ceratopsia". Geological Society of America Bulletin. 58: 1230. doi:10...

Marsh naming the group Predentata to unite ornithopods, stegosaurs, and Ceratopsia within Dinosauria, but with additional work and new discoveries the unnatural...

R.S., 1907, The Ceratopsia, Monographs of the United States Geological Survey 49: 1-198 Lull, R.S., 1933, A revision of the Ceratopsia or horned dinosaurs...

0.CO;2. S2CID 85280946. Tait, J.; Brown, B. (1928). "How the Ceratopsia carried and used their head". Transactions of the Royal Society of Canada...

E.; Hendrick, B.P.; Dodson, P. (2016). "A Centrosaurine (Dinosauria: Ceratopsia) from the Aguja Formation (Late Campanian) of Northern Coahuila, Mexico"...

New Taxon of Basal Ceratopsian from China and the Early Evolution of Ceratopsia". PLOS ONE. 10 (12): e0143369. doi:10.1371/journal.pone.0143369. PMC 4674058...

by Mateus in 2008 for the type specimen. Microceratus belonged to the Ceratopsia (Ancient Greek for "horned face"), a group of herbivorous dinosaurs with...

'thick headed lizards') is a clade of ornithischian dinosaurs. Along with Ceratopsia, it makes up the clade Marginocephalia. With the exception of two species...

Evans, D.C. (2023). "A New Late Cretaceous leptoceratopsid (Dinosauria: Ceratopsia) from the Oldman Formation (Campanian) of Alberta, Canada". In Lee, Y...

Clade: Dinosauria Clade: †Ornithischia Clade: †Neornithischia Clade: †Ceratopsia Family: †Ceratopsidae Subfamily: †Centrosaurinae Clade: †Albertaceratopsini...

postcranial anatomy of Yinlong, which resolved the below phylogeny of Ceratopsia. Yinlong was discovered with seven gastroliths preserved in the abdominal...

Clade: Dinosauria Clade: †Ornithischia Clade: †Neornithischia Clade: †Ceratopsia Superfamily: †Ceratopsoidea Clade: †Ceratopsomorpha Family: †Ceratopsidae...

(2011) showed that Micropachycephalosaurus is a basal member of the Ceratopsia. Phylogenetic analyses by Fonseca et al. (2024) instead recovered this...

the death of both he was invited to complete Marsh's monograph on the Ceratopsia also using Cope's material. Hatcher was very critical of Cope's collecting...

maximum length of 3–4 m (9.8–13.1 ft). Leptoceratops belonged to the Ceratopsia, a group of herbivorous dinosaurs with parrot-like beaks that thrived...

Clade: Dinosauria Clade: †Ornithischia Clade: †Neornithischia Clade: †Ceratopsia Family: †Ceratopsidae Subfamily: †Centrosaurinae Lambe, 1915 Type species...

Clade: Dinosauria Clade: †Ornithischia Clade: †Neornithischia Clade: †Ceratopsia Family: †Ceratopsidae Subfamily: †Centrosaurinae Clade: †Eucentrosaura...

Clade: Dinosauria Clade: †Ornithischia Clade: †Neornithischia Clade: †Ceratopsia Family: †Ceratopsidae Subfamily: †Chasmosaurinae Lambe, 1915 Type species...

Hadrosaurids. Cope did not assign Agathaumas into the group now recognized as Ceratopsia until later in 1889, when Cope recognized that his genera Monoclonius...

The type species is Nedoceratops hatcheri. Nedoceratops belonged to the Ceratopsia (the name is Latinised Greek for "horned faces"), a group of herbivorous...