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.
Dinosaur: Osmakasaurus depressus
Cretaceous: 145–132.6 Ma

Length*: | 4.2 m | 13.8 ft |
Weight*: | 300 kg | 661 lb |
*The largest known specimen
Period
Epoch: Early Cretaceous
Stage: Late Berriasian-Valanginian
Years: 145–132.6 Ma
Details
Status: valid
Author: McDonald
Year: 2011
Distribution
Area: North America
Country: USA
Region: South Dakota
Formation: Lakota
Locations
Sources
Material: Fragmentary postcranium.
References: MCDONALD, A. T. (2011). The taxonomy of species assigned to Camptosaurus (Dinosauria: Ornithopoda).
________________________