Oohkotokia
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Oohkotokia Temporal range: Late Cretaceous, 74 Ma |
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| Skull of the holotype, MOR 433 | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Clade: | Dinosauria |
| Order: | †Ornithischia |
| Family: | †Ankylosauridae |
| Subfamily: | †Ankylosaurinae |
| Genus: |
†Oohkotokia Penkalski, 2013 |
| Type species | |
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†Oohkotokia horneri Penkalski, 2013 |
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Oohkotokia (/ˌoʊ.oʊkəˈtoʊkiə/ OH-oh-kə-TOH-kee-ə) is a genus of ankylosaurid dinosaur within the subfamily Ankylosaurinae. It is known from the upper levels of the Two Medicine Formation (late Campanian stage, about 74 Ma ago) of Montana, United States. The discovery of Oohkotokia supports that Ankylosaurine dinosaurs existed and flourished continuously in Montana and/or Alberta throughout the late Campanian and early Maastrichtian stages in the Late Cretaceous period. It was a large, heavily built, quadrupedal, herbivore, that could grow up to 6 m (19.7 ft) long.
The generic name, Oohkotokia, is derived from the Blackfoot animate noun "ooh’kotoka", meaning "large stone" and the Latin suffix "ia" meaning "derived from"; thus "child of stone", which is a reference to its extensive body armor. The generic name also honors the Blackfeet people, on whose land the specimen was found. The specific name, O. horneri, refers to John R. Horner of the Museum of the Rockies, who collected the type specimen.Oohkotokia contains a single type species, Oohkotokia horneri, named and described in 2013 by Paul Penkalski. Penkalski described this genus after finding it in the collection of Montana's Museum of the Rockies where it had been stored for more than three decades.
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