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: "Dryosaurus" grandis
Cretaceous: 121.4–100.5 Ma

Length*: | 4.3 m | 14.1 ft |
Weight*: | 90 kg | 198 lb |
*The largest known specimen
Period
Epoch: Early Cretaceous
Stage: Late Aptian-Early Albian
Years: 121.4–100.5 Ma
Details
Status: nomen dubium
Author: Lull
Year: 1911
Distribution
Area: North America
Country: USA
Region: Maryland
Formation: Arundel
Sources
Material: Foot bones and caudal vertebrae ?
References: Mortimer - Theropod database (online).
________________________