Nigersaurus

Say it nee-zhayr-sore-us. The name means ‘Niger lizard’.

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

Length: 15 m
Diet: Plant-eater
When: Early Cretaceous121 to 99 million years ago
Fossils found in: Algeria, Niger, Tunisia
Named by: Sereno, Beck, Dutheil, Larsson, Lyon, Moussa, Sadleir, Sidor, Varricchio, Wilson & Wilson (1999)
Family tree: Dinosauria › Saurischia › Sauropodomorpha › Sauropoda › Diplodocoidea › Rebbachisauridae

Where Nigersaurus 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

Jobaria · same country
Ouranosaurus · same country
Lurdusaurus · same country
Suchomimus · same country
Afrovenator · same country
Carcharodontosaurus · same country
Valdosaurus · same country
Archaeoceratops

Other sauropods

Ligabuesaurus Early Cretaceous
Malawisaurus Early Cretaceous
Pelorosaurus Early Cretaceous
Austrosaurus Early Cretaceous
Chubutisaurus Early Cretaceous
Rebbachisaurus Early Cretaceous
Amargasaurus Early Cretaceous
Aragosaurus Early Cretaceous

Source: Nigersaurus 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.