Pleuracanthus robustus was a freshwater shark that lived during the Pennsylvanian period. They were eel-like in appearance and grew to be about 1.5 feet long. They are most famous for their long spine that protruded from their head and their two-pronged teeth that helped them grab and hold onto food.
Pleuracanthus robustus was a freshwater shark that lived during the Pennsylvanian period. They were eel-like in appearance and grew to be about 1.5 feet long. They are most famous for their long spine that protruded from their head and their two-pronged teeth that helped them grab and hold onto food.