Nigersaurus was a plant-eater (herbivore) that lived in Africa during the
Cretaceous period,
between about 119 and 99 million years ago.
Nigersaurus was relatively small for a
Sauropod dinosaur - it was
about 30 feet (9 meters) long and weighed about 4 tons.
Its bones were hollow and had many air spaces, and as a result,
fossils
do not tend to be well-preserved and it was poorly known until recently.
The most unusual feature of Nigersaurus was its style of feeding. Its mouth
was the widest part of its head and was equipped with several hundred small
sharp teeth. As one tooth wore out, it was replaced by another (up to 9 replacement
teeth lay behind each cutting tooth), perhaps as often as once per month.
Nigersaurus is believed to have eaten like a lawn-mower, taking it predigious quantities
of low-lying vegetation.
Nigersaurus is also noted for having neural spines on its vertebrae. In life, flesh or skin
was probably stretched between these.
"Nigersaurus" means "Niger lizard" ((it was discovered in the country of Niger).
Nigersaurus was a member of the Saurischia ("lizard-hipped") order of dinosaurs. What this means, is that although Nigersaurus was not closely related to lizards, it did have similarly shaped pelvic bones.
Nigersaurus was a Sauropod - a member of a group of related large quadrupedal herbivorous (plant-eating) dinosaur with long necks.
Nigersaurus lived between about 119 million years ago and 99 million years ago, during the Cretaceous period.
Nigersaurus lived in Africa.
Nigersaurus was a herbivore (plant-eater).
Nigersaurus had a very unusual mouth for a Sauropod - it had a wide intake like a vacuum cleaner (wider than the rest of its skull), and after taking in the food, it chewed it using hundreds small sharp teeth.
Nigersaurus was usually about 30 feet (9 meters) long.
Nigersaurus weighed about 4 tons.
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