Knobbly reptile roamed vast ancient desert

A bizarre reptile with knobbly growths on its head roamed a vast, isolated desert about 260 million years ago, researchers say.

New fossils from northern Niger in Africa have been described in the Journal of Vertebrate Paleontology.
The distinctive creature belongs to a new genus of pareiasaur - plant-eating creatures that flourished during the Permian period.
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http://www.bbc.co.uk/news/science-environment-23032892