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: Choconsaurus baileywillisi

Length*: | 21.5 m | 70.5 ft |
Weight*: | 18 t | 39,683 lb |
*The largest known specimen
Period
Epoch: Late Cretaceous
Stage: Cenomanian
Years: 100.5–93.9 Ma
Details
Status: valid
Author: Simón, Salgado & Calvo
Year: 2017
Distribution
Area: South America
Country: Argentina
Region: Neuquén
Formation: Huincul
Locations
Sources
Material: Partial skeleton (dorsal vertebrae and other fragments), referred left premaxilla, right dentary, teeth, rib fragment, vertebrae and haemal arch.
References: SimóN, E., Salgado, L., & Calvo, J. O. (2018). A New Titanosaur Sauropod from the Upper Cretaceous of Patagonia,