Look up · dinosaur 979 of 1,425
long-neck giant
Petrobrasaurus
Say it like this: “pet-RO-brah-SOR-us”
Petrobrasaurus puestohernandezi
Petrobrasaurus ate plants and walked on four legs. It lived in the Late Cretaceous. Bones have been found in Argentina.
- When
- Late Cretaceous (Coniacian · Santonian) · roughly 89.8 to 83.6 million years ago
- Named in
- 2011 · Filippi, L. S.; Canudo, J. I.; Salgado, J. L.; Garrido, A.; García, R.; Cerda, I. A.; Otero, A.
- Hip height
- 3.3 m · 11 ft
- Length
- 18 m · 59 ft
- Weight
- 13 tonnes
- Found in
- Argentina · Plottier
- Food and walking
- Herbivore · Four legs
- Kind
- long-neck giant · Sauropod
- Family branch
- Titanosauria
The story in short
The genus Petrobrasaurus dates to 2011, the year L. S. Filippi and colleagues described it. The name means “petrobras lizard.”
Fossils referred to Petrobrasaurus date to the Late Cretaceous (Coniacian · Santonian), roughly 89.8 to 83.6 million years ago. Finds come from Argentina, including the Plottier Formation. It was a herbivore and walked on four legs.
Published estimates put Petrobrasaurus at a length near 18 m, hips about 3.3 m high, and a body mass around 13 tonnes.
On the family tree it sits in Titanosauria, among the sauropod dinosaurs.
Close relatives
Aegyptosaurus
Aegyptosaurus baharijensis
Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago
Andesaurus
Andesaurus delgadoi
Late Cretaceous (Cenomanian) · roughly 100.5 to 93.9 million years ago
Antarctosaurus
Antarctosaurus wichmannianus
Late Cretaceous (Campanian) · roughly 83.6 to 72.2 million years ago