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: Antarctosaurus wichmannianus

Length*: | 12.5 m | 41.0 ft |
Weight*: | 9.5 t | 20,944 lb |
Speed: | 28 km/h | 17 mph |
*The largest known specimen
Period
Epoch: Late Cretaceous
Stage: Early Campanian
Years: 83.6–72.1 Ma
Details
Status: valid
Author: von Huene
Year: 1929
Distribution
Area: South America
Country: Argentina
Region: Río Negro
Formation: Anacleto
Locations
Sources
Material: Fragmentary skeleton and many referred bones from other locations in South America.
References: von Huene, F. (1929). Los saurisquios y ornitisquios del Cretacéo Argentino.