| Named By: | Adam M. Yates & James W. Kitching in 2003 |
| Time Period: | Early Jurassic |
| Location: | South Africa - Lower Elliot Formation |
| Size: | Estimated about 8 - 10 meters long. Possibly larger given that the holotype remains are probably those of a juvenile/subadult |
| Diet: | Herbivore |
| Fossil(s): | Partial post cranial remains, including the limbs, ribs and vertebrae |
| Classification: | | Chordata | Reptilia | Dinosauria | Saurischia | Sauropodomorpha | Sauropoda | |
Antetonitrus is a genus of sauropod dinosaur found in Early Jurassic rocks in South Africa. The only species is Antetonitrus ingenipes. As one of the oldest known sauropods, it is crucial for the understanding of the origin and early evolution of this group. It was a quadrupedal herbivore, like all of its later relatives, but shows primitive adaptations to use the forelimbs for grasping, instead of purely for weight support.