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: Atacamatitan chilensis

Length*: | 12.8 m | 42.0 ft |
Weight*: | 4.4 t | 9,700 lb |
*The largest known specimen
Period
Epoch: Late Cretaceous
Details
Status: valid
Author: Kellner et al.
Year: 2011
Distribution
Area: South America
Country: Chile
Region: Antofagasta
Formation: Tolar
Locations
Sources
Material: Right femur, the proximal end of a humerus, two dorsal vertebrae, posterior caudal vertebrae, dorsal ribs and other fragments.
References: Alexander W.A.Kellner; David Rubilar-Rogers; Alexander Vargas; Mario Suárez (2011). "A New Titanosaur Sauropod from the Atacama Desert, Chile".