Outline: a typical sauropod

Elrhaz Fm., NigerNamed 1999

Nigersaurus

NYE-jer-SORE-us

"Niger lizard"

Type species Nigersaurus taqueti

Lived
121 to 101 million years ago, Early Cretaceous
Diet
Herbivore
Length
about 9 m (30 ft)
Group
Sauropods, Rebbachisauridae
Found in
Niger
Named by
Sereno et al. 1999

Size comparison

To scale

Where its fossils were found

The evidence

Today

3 finds

110 million years ago

Map: C. R. Scotese, PALEOMAP

Field notes

About Nigersaurus

What it was like

Nigersaurus was a sauropod with a short neck and a very strange head. Its mouth was wide and flat, like a vacuum cleaner, with hundreds of small teeth lined up across the front. Worn teeth were replaced very quickly.

It probably grazed low plants, holding its head close to the ground. Its skull bones were very thin, and many were full of air spaces.

Its world

It lived in the Early Cretaceous, in what is now Niger. It comes from the Elrhaz Formation, a land of rivers shared with the spinosaur Suchomimus, the sail-backed plant eater Ouranosaurus and the predator Eocarcharia.

How it was found

Sereno and colleagues named Nigersaurus in 1999. The type species is Nigersaurus taqueti.

Lived alongside

Found in the same rock formations

Close relatives

Other members of Rebbachisauridae

Sources: WikidataNamed in: P. C. Sereno, A. L. Beck, and D. B. Dutheil, H. C. E. Larsson, G. H. Lyon, B. Moussa, R. W. Sadleir, C. A. Sidor, D. J. Varricchio, G. P. Wilson, J. A. Wilson. 1999. Cretaceous sauropods from the Sahara and the uneven rate of skeletal evolution among dinosaurs. Science 286:1342-1347