Ornithischia | Genasauria | Cerapoda | Marginocephalia | Ceratopia | Neoceratopia [Herbivore]

Known as the horned dinosaurs the last major group of dinosaurs to appear in the fossil record and among the most diverse. Coined by Sereno (1986) to designate the monophyletic assemblage that includes the Protoceratopia and the Ceratopidae.

All ceratopians closer to Triceratops than to Psittacosaurus (Sereno, 1998)

Jurassic Middle

China

Chaoyangsaurus youngi - Tuchengzi Formation, Chaoyang County, Liaoning Province

Jurassic Late

China

Chaoyangsaurus youngi - Tuchengzi Formation, Chaoyang County - Liaoning Province

Xuanhuaceratops niei - Houcheng Formation, - Hebei Province

Cretaceous Early

China

Archaeoceratops oshimai - Xinminbao Group

Archaeoceratops yujingziensis - Xinminpu Group

Auroraceratops rugosus - Xinminpu Group, Gongpoquan Basin - Gansu Province

Helioceratops brachygnathus - Quantou Formation - Jilin Province

Hongshanosaurus houi - Yixian Formation in Beipiao City - Liaoning Province

Liaoceratops yanzigouensis - Yixian Formation -Shangyuan - Liaoning

Psittacosaurus

Psittacosaurus gobiensis - Bayin Gobi Formation, Nei Mongol

Psittacosaurus guyangensis - Lisangou Formation, -Nei Mongol Zizhiqu

Psittacosaurus lujiatunensis - Yixian Formation - Liaoning Province

Psittacosaurus major - Yixian Formation, Liaoning Province

Psittacosaurus mazongshanensis - Mazongshan Area, Gansu Province

Psittacosaurus meileyingensis - Jiufotang Formation - Liaoning Province

Psittacosaurus neimongoliensis - Ejinhoro Formation, Ordo region, Inner Mongolia

Psittacosaurus ordosensis - Ejinhoro Formation, Ordo region, Inner Mongolia

Psittacosaurus osborni - Lisangou Formation, Xinpongnaobao Formation, Nei Mongol Zizhiqu

Psittacosaurus sinensis - Qingshan Formation, Shandong

Psittacosaurus tingi - West Suiyan, Inner Mongolia
Psittacosaurus xinjiangensis - Tugulu Group of the Junggar Basin, Lianmugin Formation, Xinjiang Uygur Zizhiqu

Psittacosaurus youngi - Qingshan Formation, Shandong

Mongolia

Psittacosaurus

Protiguanodon mongoliensis - Khukhtekskaya Svita

Psittacosaurus mongoliensis - Khukhtekskaya Svita, Dornogov, Khulsyngolskaya Svita, Dundgov, Shinekhudukskaya Svita, Unnamed unit, Bayankhongor, Khukhtekskaya Svita, Ovorknahgai

Psittacosaurus protiguanodonensis - Khukhtekskaya Svita, Ovorknahgai

Yamaceratops dorngobiensis - Khugenetslavkant sandstone, Gobi Desert

Russia

Psittacosaurus

Psittacosaurus sibiricus - Ilek Formation at Shestakovo, Kemerovo, Province, West Siberia

Uzbekistan

Kulceratops kulensis - Karakalpakistan - Khodzhakul\\\\\\\' Formation

Australia

Serendipaceratops arthurcclarkei - Wonthaggi Formation, Inverloch - Victoria
Leptoceratops sp. (1)

Cretaceous Late

Hungary

Ajkaceratops kozmai - Czehbánya Formation

Canada

Albertaceratops nesmoi - Oldman Formation, Alberta

Anchiceratops

Anchiceratops longirostris - Horseshoe Canyon Formation - Alberta

Anchiceratops ornatus - Judith River Group (Wedge) - Horseshoe Canyon Formation - Alberta

Arrhinoceratops brachyops - Edmonton Group, Horseshoe Canyon Formation - Alberta

Centrosaurus

Centrosaurus apertus - Judith River Group (Wedge), Alberta

Centrosaurus longirostris - Judith River Group (Wedge), Alberta

Monoclonius cutleri - Judith River Group (Wedge), Alberta

Monoclonius dawsoni - Judith River Group (Wedge), Alberta

Monoclonius flexus - Judith River Group (Wedge), Alberta

Chasmosaurus

Chasmosaurus belli - Judith River Group (Wedge), Alberta

Chasmosaurus brevirostris - Judith River Wedge, Oldman Formation - Alberta

Chasmosaurus canadensis - Judith River Wedge - Alberta

Chasmosaurus kaiseni - Judith River Wedge - Alberta

Chasmosaurus russelli - Judith River Wedge - Alberta

Eoceratops canadensis

Monoclonius belli - Judith River Group (Wedge) - Alberta

Monoclonius canadensis - Judith River Group (Wedge) - Alberta

Protorosaurus belli - Judith River Group (Wedge), Alberta

Colepiocephale lambei - [Foremost Formation], Judith River Wedge - Alberta

Stegoceras lambei - [Foremost Formation], Judith River Wedge, Alberta

 

Coronosaurus brinkmani - Oldman Formation, Judith River Group (Wedge), Alberta
Centrosaurus brinkmani - Oldman Formation, Judith River Group (Wedge), Alberta


Eotriceratops xerinsularis - Horseshoe Canyon Formation, Alberta

Gryphognathus morrisoni - Milk River Formation, Alberta

Leptoceratops gracilis - Scollard Formation - Alberta

Mojoceratops perifania - Judith River Wedge, Alberta, Saskatchewan

Monoclonius

Monoclonius crassus - Judith River Group (Wedge) - Alberta

Monoclonius lowei - Judith River Group (Wedge) - Alberta

Pachyrhinosaurus canadensis - Horseshoe Canyon Formation, St. Mary River Formation, Waptiti Formation, Alberta

Pachyrhinosaurus lakustai - Pipestone Creek bonebed, Alberta

Styracosaurus

Monoclonius nasicornus - Judith River Group (Wedge), Alberta

Spinops sternbergorum - Judith River Group (Wedge), Alberta

Styracosaurus albertensis - Judith River Group (Wedge), Alberta

Styracosaurus parksi - Judith River Group (Wedge), Alberta

Torosaurus latus - Frenchman Formation, Saskatchewan

Triceratops

Triceratops albertensis - Scollard Formation, Alberta

Triceratops horridus - Scollard Formation, Alberta, Frenchman Formation, Saskatchewan

Triceratops prorsus - Frenchman Formation, Saskatchewan

Unescoceratops koppelhusae - Dinosaur Park Formation - Alberta

Vagaceratops irvinensis - Dinosaur Park Formation - Alberta

Chasmosaurus irvinensis - Dinosaur Park Formation - Alberta

 

Xenoceratops foremostensis - Foremost Formation - Alberta

Mexico

Coahuilaceratops magnacuerna - Cerro del Pueblo Formation

US

Achelousaurus horneri - Two Medicine Formation, Montana

Agathaumas sylvestris - Lance Formation, Wyoming

Agujaceratops mariscalensis - Aguja Formation, Texas

Arrhinoceratops utahensis - North Horn Formation, Utah, Kirtland Formation, New Mexico; Javelina Formation, Texas

Avaceratops lammersi - Judith River Formation (Wedge), Montana

Bison alticornis - Lance Formation, Wyoming

Cerasinops hodgskissi - Lower Two Medicine Formation, Montana

Ceratops montanus - Judith River Formation, Montana

Chasmosaurus

Chasmosaurus mariscalensis - Aguja Formation, Texas

Diabloceratops eatoni - Wahweap Formation, Utah

Dysganus bicarinatus - Judith River Formation (Wedge), Montana

Dysganus encaustus (2) - Judith River Formation (Wedge), Montana

Dysganus haydenianus - Judith River Formation (Wedge), Montana

Dysganus peiganus - Judith River Formation (Wedge), Montana

Einiosaurus procurvicornis - Two Medicine Formation, Montana

Kosmoceratops richardsoni - Kaiparowits Formation, southern Utah

Leptoceratops gracilis - Scollard Formation, Alberta, Canada; Lance Formation, Wyoming, Hell Creek Formation, Montana

Leptoceratops sp. (2) - Pinyon Conglomerate, Wyoming

Medusaceratops lokii - Judith River Formation - Montana

Monoclonius

Monoclonius crassus - Judith River Formation (Wedge), Montana

Monoclonius fissus

Monoclonius recurvicornis

Monoclonius sphenocerus - Judith River Formation (Wedge), Montana

Montanoceratops

Leptoceratops cerorhynchus - St. Mary River Formation, Montana

Montanoceratops cerorhynchus - St. Mary River Formation, Montana

Nedoceratops hatcheri - Lance Formation, Wyoming

Diceratus hatcheri - Lance Formation, Wyoming

Diceratops hatcheri - Lance Formation, Wyoming

Ojoceratops fowleri - Ojo Alamo Sandstone, New Mexico

Pachyrhinosaurus canadensis

Pachyrhinosaurus perotorum - Prince Creek Formation, Alaska

Pentaceratops sternbergii - Fruitland Formation, Kirtland Formation, New Mexico

Pentaceratops fenestratus - Fruitland Formation, Kirtland Formation, New Mexico

Polyonax mortuarius - ?Denver Formation, Colorado

Prenoceratops pieganensis - Two Medicine Formation, Montana

Rubeosaurus ovatus - Two Medicine Formation - Montana

Styracosaurus ovatus - Two Medicine Formation, Montana

Brachyceratops montanensis - Two Medicine Formation, Montana

Tatankaceratops sacrisonorum - Hell Creek Formation, South Dakota

Titanoceratops ouranos - Fruitland Formation or the lower Kirtland Formation, New Mexico

Torosaurus latus - Lance Formation, Wyoming; Hell Creek Formationn, Montana, South Dakota; Laramie Formation, Colorado; North Horn Formation, Utah; Kirtland Formation, New Mexico; Javelina Formation, Texas

Torosaurus gladius - Lance Formation, Wyoming

Torosaurus utahensis - North Horn Formation, Utah, Kirtland Formation, New Mexico, Javelina Formation, Texas

Arrhinoceratops utahensis - North Horn Formation, Utah, Kirtland Formation, New Mexico; Javelina Formation, Texas

Triceratops

Sterrholophus flabellatus - Lance Formation, Evanston Formation, Wyoming

Triceratops alticornis - Denver Formation

Triceratops brevicornus - Lance Formation, Wyoming

Triceratops calicornis - Lance Formation, Wyoming

Triceratops elatus - Lance Formation, Wyoming

Triceratops eurycephalus - Lance Formation, Wyoming

Triceratops flabellatus - Lance Formation, Evanston Formation, Wyoming

Triceratops hatcheri - Lance Formation, Wyoming

Triceratops horridus - Lance Formation, Evanston Formation, Wyoming, Hell Creek Formation, Montana, South Dakota, Laramie Formation, Colorado

Triceratops obtusus - Lance Formation, Wyoming

Triceratops prorsus - Hell Creek Formation, Montana, Lance Formation, Wyoming

Triceratops serratus - Hell Creek Formation, Montana, Lance Formation, Wyoming


Triceratops galeus - Denver Formation, Colorado

Triceratops ingens - Lance Formation, Wyoming

Triceratops maximus - Hell Creek Formation, Montana

Triceratops sulcatus - Lance Formation, Wyoming

Ugrosaurus olsoni - Hell Creek Formation, Montana

Utahceratops gettyi - Kaiparowits Formation, southern Utah

Zuniceratops christopheri - Moreno Hill Formation, New Mexico

Argentina

Notoceratops bonarelli - Chubut Province

China

Helioceratops brachygnathus - Quantou Formation - Jilin Province

Magnirostris dodsoni - Bayan Mandahu area in Inner Mongolia

Microceratus sulcidens - Minhe Formation

Microceratops sulcidens - Minhe Formation

Microceratops gobiensis - Minhe Formation

Protoceratops andrewsi - Minhe Formation

Protoceratops hellenikorhinus - Bayan Madahu Formation

Sinoceratops zhuchengensis - Wangshi Series

Mongolia

Bagaceratops rozhdestvenskyi - Barun Goyot Formation, Red Beds of Khermeen Tsav

Bainoceratops efremovi - Djadochta Formation, Bayn Dzak

Breviceratops

Breviceratops kozlowskii - Barun Goyot Formation

Protoceratops kozlowskii ? - Barun Goyot Formation


Gobiceratops minutus - Barun Goyot Formation

Graciliceratops mongoliensis - Baynshirenskaya Svita

Microceratops gobiensis - Minhe Formation

Lamaceratops tereschenkoi - Barun Goyot Formation

Protoceratops andrewsi - Djadochta Formation, Beds of Toogreeg, ?Beds of Aleg Teg

Protoceratops kozlowskii ? - Barun Goyot Formation

Udanoceratops tschizhovi - Udan-Sayr fossil locality

Uzbekistan

Asiaceratops salsopaludalis - Khodzhakul\\\\\\\' Formation

Turanoceratops tardabilis - Central Kyzylkum desert at Dzharakuduk

Australia

Leptoceratops sp. (1)

Nomen Nudem: Xuanhuasaurus niei; Ceratops horridus
Eucentrosaurus Unnecessary replacement name for supposedly preoccupied Centrosaurus Lambe.