Nigersaurus was discovered in Niger's Gadoufaoua region in 1999
It was a 30-foot long sauropod with a 6-foot neck
The creature weighed between 1.9 and 4 tons
Its skull bones were less than 0.08 inches thick
Dental Features
Had over 500 teeth, including 60 rows of needle-shaped teeth
Upper jaws contained 68 sharp teeth
Teeth were replaceable like sharks' teeth
Each new tooth replaced after just 14 days
Lifestyle and Behavior
Likely hunted using its broad mouth like modern cows
Head was likely held downwards, possibly 67°
Had a nearly 360-degree field of view
Poorly developed sense of smell
Discovery History
First fossils found in Nigerian Sahara in 1950s
80% of skeleton reconstructed by 1999
Named after French paleontologist Philippe Taquet
Only upper jaw of baby remains discovered
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