Piveteausaurus Facts
| Diet | Carnivore |
| Height | 3.5m |
| Length | 11m |
| Weight | 2.5 tonnes |
| Environment | Land |
| Era | Jurassic |
| Period | Middle Jurassic |
| Type | Theropod |
| Location | France |

| Diet | Carnivore |
| Height | 3.5m |
| Length | 11m |
| Weight | 2.5 tonnes |
| Environment | Land |
| Era | Jurassic |
| Period | Middle Jurassic |
| Type | Theropod |
| Location | France |
Piveteausaurus was a large theropod dinosaur that prowled the coastal regions of what is now northern France during the Middle Jurassic period, approximately 165 million years ago. Named after the French palaeontologist Jean Piveteau, this prehistoric predator is known from only a partial skull discovered in the Marnes de Dives Formation of Calvados.
Despite being based on limited remains, scientists estimate that Piveteausaurus could have reached lengths of up to 11 metres, making it a formidable predator of its time. As a theropod, it walked on two powerful legs and possessed sharp teeth designed for slicing through flesh. Its skull fragments suggest it had a robust build typical of large carnivorous dinosaurs from this period.
Living during the Middle Jurassic, Piveteausaurus shared its environment with other dinosaurs, marine reptiles, and early mammals. The coastal setting of its discovery suggests it may have hunted both terrestrial prey and possibly scavenged marine creatures that washed ashore. However, the fragmentary nature of the fossil evidence means much about its exact appearance, behaviour, and ecological role remains mysterious.
The classification of Piveteausaurus within the theropod family tree remains somewhat uncertain due to the limited fossil material available. Some researchers place it within the Megalosauridae family, though this assignment is debated among palaeontologists.
Piveteausaurus possessed a robust skull structure typical of large theropod predators, though specific distinguishing features are difficult to determine from the partial remains. The skull fragments suggest it was a powerful, large-headed carnivore with substantial jaw muscles for delivering crushing bites.
As a large theropod, Piveteausaurus likely hunted both actively and through scavenging opportunities along the Middle Jurassic coastline. Its substantial size suggests it may have been an apex predator in its ecosystem, capable of taking down sizeable prey or driving smaller predators away from carcasses.
Piveteausaurus was first described by Thévenin in 1923. The original fossils were discovered at Marnes de Dives Formation, Calvados, northern France.