Dinosaurs · Large theropod

Elaphrosaurus

Say it el-a-fro-sore-us. The name means ‘fleet lizard’.

Elaphrosaurus 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: 6.2 m
Diet: Meat-eater
When: Late Jurassic154 to 151 million years ago
Fossils found in: Tanzania
Named by: Janensch (1920)
Family tree: Dinosauria › Saurischia › Theropoda › Ceratosauria › Neoceratosauria

Where Elaphrosaurus 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

Barosaurus · same country
Dryosaurus · same country
Giraffatitan · same country
Janenschia · same country
Kentrosaurus · same country
Camptosaurus
Chinshakiangosaurus
Chungkingosaurus

Other large theropods

Marshosaurus Late Jurassic
Saurophaganax Late Jurassic
Allosaurus Late Jurassic
Ceratosaurus Late Jurassic
Metriacanthosaurus Late Jurassic
Yangchuanosaurus Late Jurassic
Piatnitzkysaurus Late Jurassic
Eustreptospondylus Mid Jurassic

Source: Elaphrosaurus 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.