Styracosaurus

Styracosaurus was a genus of herbivorous ceratopsian dinosaur from the Upper Cretaceous, about 76.5 to 75 million years ago.

Styracosaurus Temporal range: Upper Cretaceous
Artist's impression of Styracosaurus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Sauropsida
Superorder:	Dinosauria
Order:	Ornithischia
Suborder:	Cerapoda
Infraorder:	Ceratopsia
Family:	Ceratopsidae
Subfamily:	Centrosaurinae
Genus:	Styracosaurus Lambe, 1913
Species
S. albertensis (type) S. ovatus Gilmore, 1930 ?S. parksi Brown & Schlaikjer, 1937

Styracosaurus Media

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  Excavation of the holotype specimen

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  Styracosaurus "parksi" skeleton, specimen AM5372

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  Holotype frill of S. ovatus, which was previously in the genus Rubeosaurus

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  Possible anagenesis, with S. albertensis (bottom) evolving into Stellasaurus and later centrosaurines

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  Size comparison of Styracosaurus, scaled based on AMNH 5372. The human silhouette is from

• Silhouette of man standing and facing forward.svg (CC0).*References* * Skeletal diagram by Scott Hartman * Brown, B.; Schlai
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  Styracosaurus albertensis, a ceratopsian from the Late Cretaceous of North America, pencil drawing, digital coloring

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  Ceratopsid skull casts positioned in a phylogenetic tree, in the Natural History Museum of Utah, with Styracosaurus at the far left

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  Skull of the holotype specimen

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  Biogeography of centrosaurine dinosaurs during the Campanian