Ceratopsidae

Ceratopsids were the biggest and most fearsome of the ceratopsians, or horned-faced dinosaurs. With their frills and horns being the only real differences between named species, many names may actually represent members of the same species varying by age and/or gender. It is divided into the long-frilled chasmosaurines and the short-frilled centrosaurines, with their pad-nosed pachyrhinosaurins.

Ceratopsids make up most of the Lightning Dinosaurs.

A

• Achelousaurus horneri
• Agathaumas sylvestris (dubious, likely same as Triceratops)
• Agujaceratops mariscalensis
• Albertaceratops nesmoi
• Anchiceratops/A. longirostris/A. ornatus
• Aquilops americanus
• Arrhinoceratops/A. brachyops/A. utahensis
• Avaceratops lammersi

B

• Bagaceratops rozhdestvenskyi
• Bainoceratops efremovi
• Brachyceratops montanensis

C

• Centrosaurus apertus
• Ceratops montanus (dubious)
• Chaoyangsaurus youngi
• Chasmosaurus/C. belli/C. russelli
• Coahuilaceratops magnacuerna
• Coronosaurus brinkmani

D

• Diabloceratops eatoni
• Diceratops hatcheri (now "Nedoceratops", may be Triceratops)

E

• Einiosaurus procurvicornis
• Eotriceratops xerinsularis
• Eucentrosaurus apertus (same as Centrosaurus)

F

• Ferrisaurus sustutensis

K

• Kosmoceratops richardsoni

M

• Medusaceratops lokii
• Mojoceratops perifania
• Monoclonius crassus (potentially invalid)

O

• Ojoceratops fowleri (maybe same as Triceratops or Eotriceratops)

P

• Pachyrhinosaurus canadensis
• Pentaceratops/P. fenestratus/P. sternbergii

R

• Rubeosaurus ovatus

S

• Sinoceratops zhuchengensis
• Styracosaurus/S. albertensis/S. parksi

T

• Tatankaceratops sacrisonorum (may be Triceratops)
• Titanoceratops ouranos
• Torosaurus/T. latus/T. utahensis
• Turanoceratops tardabilis (uncertain if true member)
• Triceratops/T. horridus/T. prorsus

U

• Utahceratops gettyi

V

• Vagaceratops irvinensis