Dinosaur: Ugrosaurus olsoni
| Length*: | 8.6 m | 28.2 ft |
| Weight*: | 8.8 tons | 19,400 lb |
ESR: 1 / 4 (estimated size reliability)
Period
Epoch: Late Cretaceous
Stage: Late Maastrichtian
Details
Status: S > Triceratops horridus
Autor: CoBabe & Fastovsky
Year: 1987
Area: North America
Country: USA
Region: Montana
Formation: Hell Creek
Other
Material: Skull fragments and vertebral centrum.
References: Forster, C.A. (1993) "Taxonomic validity of the ceratopsid dinosaur Ugrosaurus olsoni (Cobabe and Fastovsky)".
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