AnkylosauriaDinosauriaEarly CretaceousEurypodaGenasauriaNodosauridaeNorth AmericaOrnithischiaThyreophora
Tatankacephalus cooneyorum
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Dinosaur: Tatankacephalus cooneyorum
Cretaceous: 121.4–100.5 Ma
| Length*: | 3.9 m | 12.8 ft |
| Weight*: | 450 kg | 992 lb |
*The largest known specimen
Period
Epoch: Early Cretaceous
Stage: Late Aptian-Early Albian
Years: 121.4–100.5 Ma
Details
Status: valid
Author: Parsons & Parsons
Year: 2009
Distribution
Area: North America
Country: USA
Region: Montana
Formation: Cloverly
Locations
Sources
Material: Incomplete skull, rib fragments and 2 osteoderms.
References: Arbour, V. M., & Currie, P. J. (2015). Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs.
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