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horned dinosaur · Disputed
Tatankaceratops
Tatankaceratops sacrisonorum
Tatankaceratops ate plants and moved in a way the fossils do not settle. It lived in the Late Cretaceous. Bones have been found in the United States.
- When
- Late Cretaceous (Maastrichtian) · roughly 72.2 to 66 million years ago
- Named in
- 2010 · Ott, C. J.; Larson, P. L.
- Hip height
- Not established
- Length
- 3–3.5 m · 10–11 ft
- Weight
- Not established
- Found in
- the United States · Hell Creek
- Food and walking
- Herbivore · Not recorded
- Kind
- horned dinosaur · Ceratopsian
- Family branch
- Chasmosaurinae
The story in short
The genus Tatankaceratops dates to 2010, the year C. J. Ott and P. L. Larson described it.
It lived in the Late Cretaceous (Maastrichtian), roughly 72.2 to 66 million years ago. Finds come from the United States, including the Hell Creek Formation. It was a herbivore. A habitual gait is not settled.
Published estimates put Tatankaceratops at a length near 3–3.5 m.
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