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Nigel holds the labyrinthodont
Crassigyrinus was a labyrinthodont that lived in the Carboniferous period, in the rivers of Scotland.
It was carnivore, so, it probably ate fish and insects like Meganeuras or Giant Scorpions. It had two rows of teeth and was over 2 metres long.
Prehistoric Park
One Crassigyrinus was seen in the fifth episode of Prehistoric Park, but Nigel did not bring him to the Park. It bit Nigel on his leg and fled, but when the explorer returned to the river, he caught the labyrinthodont and showed some points of interest of it to the camera. He later releases it which it then swims away.