Outline: a typical ankylosaur
Oohkotokia
OH-oh-ko-TOH-kee-a
Type species Oohkotokia horneri
- Lived
- 84 to 72 million years ago, Late Cretaceous
- Diet
- Herbivore
- Group
- Ankylosaurs, Ankylosauridae
- Found in
- United States
- Named by
- Penkalski 2014
Where its fossils were found
The evidence
Today
80 million years ago
Field notes
About Oohkotokia
What it was like
Oohkotokia was an ankylosaur, a low, armored plant eater with a tail club. It had broad armor plates and low, rounded spikes.
Its world
It lived in the Late Cretaceous, in what is now Montana. It comes from the Two Medicine Formation, where it shared the land with the horned Achelousaurus, the duckbill Maiasaura and the tyrannosaur Daspletosaurus.
How it was found
Penkalski named Oohkotokia in 2014. The type species is Oohkotokia horneri. Its name comes from a local native word for a large stone. Some scientists think it could be the same animal as Scolosaurus.
Lived alongside
Found in the same rock formations
Close relatives
Other members of Ankylosauridae
Sources: WikidataNamed in: P. Penkalski. 2014. A new ankylosaurid from the late Cretaceous Two Medicine Formation of Montana, USA. Acta Palaeontologica Polonica









