The Ancient Tully Monster No Longer Totally Defies Classification
After extensive scanning and computer analysis, researchers say Tullimonstrum gregarium was probably most closely related to today's lamprey eels.By Evan Thomas | March 16, 2016
No, this isn't a collection of spare parts. It's an ancient water-dwelling creature called Tullimonstrum gregarium.
Scientists call it the Tully monster for short, after fossil hunter Francis Tully, who found the first specimen in 1958.
It's thought to have roamed proto-Illinois some 307 million years ago, back when the region was largely underwater. Researchers say its stalked eyes and mouth full of teeth probably mean it was a predator.