herbivore

Marginocephalia

Horned & domed dinosaurs

161–66 MYA

Meet the giants

141 genera, ordered oldest to newest — the evolutionary line, not the alphabet.

Genus	Period	Max weight	Height	Diet	Region
YinlongChaoyangsauridae	161.5–154.8 MYA	Unknown	Unknown	unknown	Asia
HualianceratopsChaoyangsauridae	161.5–154.8 MYA	Unknown	Unknown	unknown	Asia
ChaoyangsaurusChaoyangsauridae	152.2–132.6 MYA	Unknown	Unknown	unknown	Asia
XuanhuaceratopsChaoyangsauridae	152.2–132.6 MYA	Unknown	Unknown	unknown	Asia
ChaoyangosaurusChaoyangsauridae	152.2–132.6 MYA	Unknown	Unknown	unknown	Unknown
StenopelixChaoyangsauridae	139.1–137.1 MYA	Unknown	Unknown	unknown	Europe
Psittacosaurus	137.1–100.5 MYA	Unknown	Unknown	unknown	Asia
Protiguanodon	137.1–100.5 MYA	Unknown	Unknown	unknown	Unknown
Hongshanosaurus	137.1–100.5 MYA	Unknown	Unknown	unknown	Unknown
Albalophosaurus	125.8–121.4 MYA	Unknown	Unknown	unknown	Asia
Liaoceratops	125.8–119.6 MYA	Unknown	Unknown	unknown	Asia
ProtoceratopsProtoceratopsidae	121.4–72.2 MYA	Unknown	Unknown	unknown	Asia
BainoceratopsProtoceratopsidae	121.4–72.2 MYA	Unknown	Unknown	unknown	Unknown
HelioceratopsLeptoceratopsidae	121.4–100.5 MYA	Unknown	Unknown	unknown	Asia
Archaeoceratops	121.4–110.1 MYA	Unknown	Unknown	unknown	Asia
Serendipaceratops	121.4–119.6 MYA	Unknown	Unknown	unknown	Oceania
Zavacephale	119.6–100.5 MYA	Unknown	Unknown	unknown	Asia
KoreaceratopsLeptoceratopsidae	113.2–100.5 MYA	Unknown	Unknown	unknown	Asia
Auroraceratops	113.2–110.1 MYA	Unknown	Unknown	unknown	Asia
Sasayamagnomus	113.2–110.1 MYA	Unknown	Unknown	unknown	Asia
Aquilops	110.1–100.5 MYA	Unknown	Unknown	unknown	North America
Beg	106.3–93.9 MYA	Unknown	Unknown	unknown	Asia
AmtocephalePachycephalosauridae	100.5–83.6 MYA	Unknown	Unknown	unknown	Asia
Graciliceratops	100.5–83.6 MYA	Unknown	Unknown	unknown	Asia
Asiaceratops	100.5–93.9 MYA	Unknown	Unknown	unknown	Asia
Zuniceratops	93.9–89.8 MYA	Unknown	Unknown	unknown	North America
Mosaiceratops	93.9–72.2 MYA	Unknown	Unknown	unknown	Asia
Turanoceratops	93.9–89.8 MYA	Unknown	Unknown	unknown	Asia
Micropachycephalosaurus	89.8–83.6 MYA	Unknown	Unknown	unknown	Asia
GryphoceratopsLeptoceratopsidae	85.7–83.6 MYA	Unknown	Unknown	unknown	North America
BrachyceratopsCeratopsidae	85.7–72.2 MYA	Unknown	Unknown	unknown	Unknown
AcrotholusPachycephalosauridae	85.7–83.6 MYA	Unknown	Unknown	unknown	North America
Yamaceratops	85.7–72.2 MYA	Unknown	Unknown	unknown	Asia
Ajkaceratops	85.7–83.6 MYA	Unknown	Unknown	unknown	Europe
Goyocephale	85.7–66 MYA	Unknown	Unknown	unknown	Asia
CentrosaurusCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	North America
CerasinopsLeptoceratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
ChasmosaurusCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
ColepiocephalePachycephalosauridae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
CoronosaurusCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
CrittendenceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
DiabloceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
EiniosaurusCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
ForaminacephalePachycephalosauridae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
FurcatoceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
GremlinLeptoceratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
JudiceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
KosmoceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
LokiceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
MachairoceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
MedusaceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
MenefeeceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
MonocloniusCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
MontanoceratopsLeptoceratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	North America
NasutoceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
NavajoceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
PachyrhinosaurusCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	North America
PentaceratopsCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	North America
PrenoceratopsLeptoceratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
RubeosaurusCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
SierraceratopsCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	North America
SphaerotholusPachycephalosauridae	83.6–66 MYA	Unknown	Unknown	unknown	North America
SpiclypeusCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
SpinopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
StellasaurusCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
BagaceratopsProtoceratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	Asia
BreviceratopsProtoceratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	Asia
IschioceratopsLeptoceratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	Asia
SinocephalePachycephalosauridae	83.6–66 MYA	Unknown	Unknown	unknown	Asia
SinoceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	Asia
TylocephalePachycephalosauridae	83.6–72.2 MYA	Unknown	Unknown	unknown	Asia
UdanoceratopsLeptoceratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	Asia
ZhuchengceratopsLeptoceratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	Asia
AchelousaurusCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
AgujaceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
AlbertaceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
AnchiceratopsCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	North America
ArrhinoceratopsCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	North America
AvaceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
BisticeratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
BrontotholusPachycephalosauridae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
GobiceratopsProtoceratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
MercuriceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	Unknown
MojoceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	Unknown
NedoceratopsCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
OjoceratopsCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
ProceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	Unknown
ProtorosaurusCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	Unknown
SterrholophusCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
TatankaceratopsCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
LamaceratopsProtoceratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
MagnirostrisProtoceratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
PlatyceratopsProtoceratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
TexacephalePachycephalosauridae	83.6–72.2 MYA	Unknown	Unknown	unknown	Unknown
TerminocavusCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
TitanoceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
TorosaurusCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	North America
UnescoceratopsLeptoceratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
UtahceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
VagaceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
WendiceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
XenoceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
YehuecauhceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	North America
CeratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	Unknown
DiceratopsCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
DiceratusCeratopsidae	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
EoceratopsCeratopsidae	83.6–72.2 MYA	Unknown	Unknown	unknown	Unknown
Stegoceras	83.6–66 MYA	Unknown	Unknown	unknown	North America
Prenocephale	83.6–66 MYA	Unknown	Unknown	unknown	Asia
Ornatotholus	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
Gravitholus	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
Stenotholus	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
Stygimoloch	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
Tylosteus	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
Dracorex	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
Hanssuessia	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
Microceratops	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
Microceratus	83.6–66 MYA	Unknown	Unknown	unknown	Unknown
StyracosaurusCeratopsidae	75.5–74.5 MYA	Unknown	Unknown	herbivore	North America
PlatytholusPachycephalosauridae	72.2–66 MYA	Unknown	Unknown	unknown	North America
LeptoceratopsLeptoceratopsidae	72.2–66 MYA	Unknown	Unknown	unknown	North America
CoahuilaceratopsCeratopsidae	72.2–66 MYA	Unknown	Unknown	unknown	North America
AgathaumasCeratopsidae	72.2–66 MYA	Unknown	Unknown	unknown	Unknown
RegaliceratopsCeratopsidae	72.2–66 MYA	Unknown	Unknown	unknown	North America
FerrisaurusLeptoceratopsidae	72.2–66 MYA	Unknown	Unknown	unknown	North America
PolyonaxCeratopsidae	72.2–66 MYA	Unknown	Unknown	unknown	Unknown
AlaskacephalePachycephalosauridae	72.2–66 MYA	Unknown	Unknown	unknown	North America
UgrosaurusCeratopsidae	72.2–66 MYA	Unknown	Unknown	unknown	Unknown
EotriceratopsCeratopsidae	72.2–66 MYA	Unknown	Unknown	unknown	North America
BravoceratopsCeratopsidae	72.2–66 MYA	Unknown	Unknown	unknown	North America
Notoceratops	72.2–66 MYA	Unknown	Unknown	unknown	South America
Ferenceratops	72.2–66 MYA	Unknown	Unknown	unknown	Europe
Homalocephale	72.2–66 MYA	Unknown	Unknown	unknown	Asia
Wannanosaurus	72.2–66 MYA	Unknown	Unknown	unknown	Asia
Pachycephalosaurus	70–66 MYA	Unknown	Unknown	herbivore	North America
TriceratopsCeratopsidae	68–66 MYA	Unknown	Unknown	herbivore	North America
EucentrosaurusCeratopsidae	Unknown range	Unknown	Unknown	unknown	Unknown
HanssuesiaPachycephalosauridae	Unknown range	Unknown	Unknown	unknown	Unknown
XuanhuasaurusPsittacosauridae	Unknown range	Unknown	Unknown	unknown	Unknown
Dysganus	Unknown range	Unknown	Unknown	unknown	Unknown
Kulceratops	Unknown range	Unknown	Unknown	unknown	Unknown

Weight and height are best estimates from published research, not exact measurements — sauropod mass in particular varies by method and specimen. Most genera below are newly classified and still awaiting full measurements.