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horned dinosaur
Pentaceratops
Say it like this: “PEN-ta-SER-a-tops”
Pentaceratops sternbergii
Pentaceratops ate plants and walked on four legs. It lived in the Late Cretaceous. Bones have been found in the United States.
- When
- Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
- Named in
- 1923 · Osborn, H. F.
- Hip height
- 2 m · 7 ft
- Length
- 5.5–6 m · 18–20 ft
- Weight
- 2.5 tonnes
- Found in
- the United States · Fruitland
- Food and walking
- Herbivore · Four legs
- Kind
- horned dinosaur · Ceratopsian
- Family branch
- Chasmosaurinae
The story in short
Pentaceratops was formally named in 1923 by H. F. Osborn.
It lived in the Late Cretaceous (Campanian), roughly 83.6 to 72.2 million years ago. Finds come from the United States, including the Fruitland Formation. It was a herbivore and walked on four legs.
Published estimates put Pentaceratops at a length near 5.5–6 m, hips about 2 m high, and a body mass around 2.5 tonnes.
On the family tree it sits in Chasmosaurinae, among the horned dinosaurs.
Close relatives
Agujaceratops
Agujaceratops mariscalensis
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago
Anchiceratops
Anchiceratops ornatus
Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago
Arrhinoceratops
Arrhinoceratops brachyops
Late Cretaceous (Campanian · Maastrichtian) · roughly 83.6 to 66 million years ago