Pelorosaurus

Say it pel-oh-ROW-sore-us. The name means ‘monstrous lizard’.

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

Length: 25 m
Diet: Plant-eater
When: Early Cretaceousabout 125 million years ago
Fossils found in: England
Named by: Mantell (1850)
Family tree: Dinosauria › Saurischia › Sauropodomorpha › Sauropoda › Macronaria › Titanosauriformes

Where Pelorosaurus 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

Found in Britain. Fossils of Pelorosaurus have been found in the United Kingdom. Read about how Britain moved across the globe in Britain's journey.

Lived at the same time

Baryonyx · same country
Eotyrannus · same country
Hypsilophodon · same country
Iguanodon · same country
Neovenator · same country
Polacanthus · same country
Valdosaurus · same country
Afrovenator

Other sauropods

Ligabuesaurus Early Cretaceous
Malawisaurus Early Cretaceous
Nigersaurus Early Cretaceous
Amargasaurus Early Cretaceous
Aragosaurus Early Cretaceous
Jobaria Early Cretaceous
Austrosaurus Early Cretaceous
Chubutisaurus Early Cretaceous

Source: Pelorosaurus 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.