Dinosaur: Monoclonius crassus
Cretaceous: 83.6–72.1 Ma
| Length*: | 5 m | 16.4 ft |
| Weight*: | 1.6 t | 3,527 lb |
*The largest known specimen
Period
Epoch: Late Cretaceous
Stage: Middle-Late Campanian
Years: 83.6–72.1 Ma
Details
Status: nomen dubium
Author: Cope
Year: 1876
Distribution
Area: North America
Country: USA
Region: Montana
Formation: Judith River
Locations
Sources
Material: Parietal, other material- postcrania ?, other skull fragments ? (problematic).
References: Dodson, P. (1990). On the status of the ceratopsids Monoclonius and Centrosaurus.
