Spinosaurus dinosaur was enormous river-monster , researchers say

Spinosaurus dinosaur was  enormous river-monster , researchers say
The researchers at the University of Portsmouth say their discovery of 1,200 dinosaur teeth "proves beyond reasonable doubt" that Spinosaurus was an "enormous river-monster".

Its dental remains accounted for 45% of those found in a prehistoric river, they said.

The findings have been published in the Cretaceous Research journal.

Spinosaurus fossils were found in large numbers at the site of an ancient river bed in Morocco, which flowed through the Sahara Desert 100 million years ago.

The scientists said their discovery meant the 15-metre (49ft) long, six-tonne dinosaur was not a land-based predator but a largely aquatic one.
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