Dinosaur: Allosaurus jimmadseni
Jurassic: 154.8–149.2 Ma
| Length*: | 10.4 m | 34.1 ft |
| Weight*: | 3.8 t | 8,378 lb |
| Speed: | 34 km/h | 21 mph |
*The largest known specimen
Period
Epoch: Late Jurassic
Stage: Late Kimmeridgian
Years: 154.8–149.2 Ma
Details
Status: valid
Author: Chure & Loewen
Year: 2020
Distribution
Area: North America
Country: USA
Region: Utah, Wyoming, Colorado, South Dakota
Formation: Morrison
Locations
Sources
Material: At least several individuals (include almost complete skeletons and skulls).
References: Chure, (2000). A new species of Allosaurus from the Morrison Formation of Dinosaur National Monument (Utah-Colorado) and a revision of the theropod family Allosauridae.Chure DJ, Loewen MA. (2020). Cranial anatomy of Allosaurus jimmadseni, a new species from the lower part of the Morrison Formation (Upper Jurassic) of Western North America.
