The two species of amphibians discovered are similar to crocodiles in shape. Nigerpeton ricglesi had rounded noses, with small eyes and both small and large fang-like teeth. Saharastega moradiensis had curved 'horns' on the back of its head and an array of small teeth.
"Our findings show that climate change more than 250 million years ago had a dramatic effect on species survival and evolution," says Larsson. "Something to keep in mind when evaluating similar changes in today's world."
This research was funded by the Natural Sciences and Engineering Research Council of Canada and McGill's Redpath Museum. Hans Larsson is a Canada Research Chair in Vertebrate Paleontology.
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