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: Sarahsaurus aurifontanalis

Length*: | 4.3 m | 14.1 ft |
Weight*: | 190 kg | 419 lb |
*The largest known specimen
Period
Epoch: Early Jurassic
Stage: Sinemurian-Pliensbachian
Years: 199.3–182.7 Ma
Details
Status: valid
Author: Rowe, Sues & Reisz
Year: 2011
Distribution
Area: North America
Country: USA
Region: Arizona
Formation: Kayenta
Locations
Sources
Material: 3 skeletons also with skulls.
References: Marsh AD, Rowe TB (2018) “Anatomy and systematics of the sauropodomorph Sarahsaurus aurifontanalis from the Early Jurassic Kayenta Formation”.