Patagotitan

Say it Pat-ah-go-tie-tan. The name means ‘titan from Patagonia’.

Patagotitan beside a person 1.75 m tall. Ticks mark every metre.Body shape drawn for this site, showing the general build of sauropods

Length: 37.5 m
Weight: 57 tonnes
Diet: Plant-eatertough plant material
Walked: On four legs
When: Early Cretaceousabout 101 million years ago
Fossils found in: Argentina
Named by: Carballido, Pol, Otero, Cerda, Salgado, Garrido, Ramezani, Cuneo and Krause (2017)
Family tree: Dinosauria › Saurischia › Sauropodomorpha › Sauropoda › Macronaria › Titanosauriformes › Titanosauria

Where Patagotitan sits in the age of dinosaurs.Periods from the ICS chart; dinosaur dates from the Natural History Museum

Sauropods. Long-necked, four-legged plant-eaters, the biggest animals ever to walk on land. See all 59

Lived at the same time

Other sauropods

Paralititan Late Cretaceous
Aegyptosaurus Late Cretaceous
Argentinosaurus Late Cretaceous
Austrosaurus Early Cretaceous
Chubutisaurus Early Cretaceous
Rebbachisaurus Early Cretaceous
Sonidosaurus Late Cretaceous
Quaesitosaurus Late Cretaceous

Source: Patagotitan in the Natural History Museum Dino Directory, read 12 November 2026. Sizes are the museum's estimates for a typical adult. "Lived at the same time" lists dinosaurs whose dates overlap, which does not always mean they met.