Puertasaurus

Say it PWER-ta-sore-us. The name means ‘Puerta and Reuils lizard’.

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

Length: 30 m
Diet: Plant-eater
Walked: On four legs
When: Late Cretaceous76 to 70 million years ago
Fossils found in: Argentina
Named by: Novas, Salgado, Calvo and Agnolin (2005)
Family tree: Dinosauria › Saurischia › Sauropodomorpha › Sauropoda › Macronaria › Titanosauriformes › Titanosauria

Where Puertasaurus 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

Dreadnoughtus · same country
Noasaurus · same country
Aucasaurus · same country
Gasparinisaura · same country
Abelisaurus · same country
Kritosaurus · same country
Neuquensaurus · same country
Secernosaurus · same country

Other sauropods

Dreadnoughtus Late Cretaceous
Maxakalisaurus Late Cretaceous
Nemegtosaurus Late Cretaceous
Opisthocoelicaudia Late Cretaceous
Ampelosaurus Late Cretaceous
Isisaurus Late Cretaceous
Magyarosaurus Late Cretaceous
Neuquensaurus Late Cretaceous

Source: Puertasaurus 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.