Dinosaurs · Large theropod

Spinosaurus

Say it SPINE-oh-SORE-us. The name means ‘spine lizard’.

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

Length: 14 m
Weight: 7.4 tonnes
Diet: Meat-eaterfish and maybe other dinosaurs
When: Late Cretaceous99 to 94 million years ago
Fossils found in: Egypt, Morocco
Named by: Stromer (1915)
Family tree: Dinosauria › Saurischia › Theropoda › Spinosauridae › Spinosaurini

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

Large theropods. Big two-legged meat-eaters, such as Tyrannosaurus. See all 63

Lived at the same time

Carcharodontosaurus · same country
Deltadromeus · same country
Paralititan · same country
Aegyptosaurus · same country
Rebbachisaurus · same country
Achillobator
Buitreraptor
Eolambia

Other large theropods

Achillobator Late Cretaceous
Carcharodontosaurus Late Cretaceous
Deltadromeus Late Cretaceous
Garudimimus Late Cretaceous
Mapusaurus Late Cretaceous
Giganotosaurus Late Cretaceous
Segnosaurus Late Cretaceous
Tyrannotitan Early Cretaceous

Source: Spinosaurus 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.