Dinosaur: Apatosaurus ajax
Jurassic: 154.8–145 Ma
| Length*: | 23 m | 75.5 ft |
| Weight*: | 20 tons | 44,092 lb |
| Speed: | 17 km/h | 11 mph |
*The largest known specimen
Period
Epoch: Late Jurassic
Stage: Late Kimmeridgian-Early Tithonian
Years: 154.8–145 Ma
Details
Status: valid
Author: Marsh
Year: 1877
Distribution
Area: North America
Country: USA
Region: Colorado
Formation: Morrison
Sources
Material: At least one partial skeleton with fragmentary skull. Referred other specimens ?
References: Tschopp, E., Mateus, O. & Benson, R.B.J. (2015) "A specimen-level phylogenetic analysis and taxonomic revision of Diplodocidae (Dinosauria, Sauropoda)".
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