Every month, 100,000 readers use the Dinosaur Database, but we receive no support from you. Developing and updating the database requires a lot of work. Therefore, as of September 1, 2025, the database will be closed. If you want it to remain open and be updated, please support us via the "Buy us a coffee" button available on every page or via the Support page.
Dinosaur: "Apatosaurus" minimus

Length*: | 12.4 m | 40.7 ft |
Weight*: | 8 t | 17,637 lb |
Speed: | 20 km/h | 12 mph |
*The largest known specimen
Period
Epoch: Late Jurassic
Stage: Late Kimmeridgian-Early Tithonian
Years: 154.8–145 Ma
Details
Status: valid
Author: Mook
Year: 1917
Distribution
Area: North America
Country: USA
Region: Wyoming
Formation: Morrison
Sources
Material: Sacrum and pelvic girdle.
References: Tschopp, E., Mateus, O. & Benson, R.B.J. (2015) "A specimen-level phylogenetic analysis and taxonomic revision of Diplodocidae (Dinosauria, Sauropoda)".