Dinosaur: Thespesius occidentalis
Cretaceous: 72.1–66 Ma
| Length*: | 7.9 m | 25.9 ft |
| Weight*: | 1.9 t | 4,189 lb |
*The largest known specimen
Period
Epoch: Late Cretaceous
Stage: Late Maastrichtian
Years: 72.1–66 Ma
Details
Status: nomen dubium
Author: Leidy
Year: 1856
Distribution
Area: North America
Country: USA
Region: South Dakota
Formation: Lance
Sources
Material: 2 caudal vertebrae and proximal median phalanx of pes.
References: Lull, Richard S.; Wright, Nelda E. (1942). "Hadrosaurian Dinosaurs of North America".
