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horned dinosaur
Eotriceratops
Say it like this: “EE-oh-tri-SEH-ruh-tops”
Eotriceratops xerinsularis
Eotriceratops ate plants and walked on four legs. It lived in the Late Cretaceous. Bones have been found in Canada.
- When
- Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago
- Named in
- 2007 · Wu, X. C.; Brinkman, D. B.; Eberth, D. A.; Braman, D. R.
- Hip height
- Not established
- Length
- 8.5–9 m · 28–30 ft
- Weight
- 11 tonnes
- Found in
- Canada · Horseshoe Canyon
- Food and walking
- Herbivore · Four legs
- Kind
- horned dinosaur · Ceratopsian
- Family branch
- Chasmosaurinae
The story in short
The genus Eotriceratops dates to 2007, the year X. C. Wu and colleagues described it.
Fossils referred to Eotriceratops date to the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from Canada, including the Horseshoe Canyon Formation. It was a herbivore and walked on four legs.
Published estimates put Eotriceratops at a length near 8.5–9 m and a body mass around 11 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