Dinosaur: Atlantosaurus montanus
Jurassic: 154.8–145 Ma
| Length*: | 23 m | 75.5 ft |
| Weight*: | 20 tons | 44,092 lb |
*The largest known specimen
Period
Epoch: Late Jurassic
Stage: Late Kimmeridgian-Early Tithonian
Years: 154.8–145 Ma
Details
Status: nomen dubium
Author: Marsh
Year: 1877
Distribution
Area: North America
Country: USA
Region: Colorado
Formation: Morrison
Sources
Material: Sacrum, femur ?
References: Taylor, M. P. (2010). Sauropod dinosaur research: a historical review.
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