AnkylosauriaDinosauriaEarly CretaceousEurypodaGenasauriaNodosauridaeNorth AmericaOrnithischiaThyreophora
Tatankacephalus cooneyorum
Every month, 100,000 readers use the Dinosaur Database, but we receive no support from you. Developing and updating the database requires a lot of work. Therefore, as of September 1, 2025, the database will be closed. If you want it to remain open and be updated, please support us via the "Buy us a coffee" button available on every page.
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.
________________________
