Tully Monster

Tullimonstrum gregarium or the tully monster was a species of soft bodied bilaterians that lived in the pensylvanian period. Nobody exactly knows what tullimonstrum is but it is highly debated. Tullimonsrum grew to large sizes compared to creatures it was contemporary with, it was a top predator and even ruled out sea scorpions. The tully monster had one deadly weapon it's proboscis used to snag prey and eat it. The monster had to eyes on both sides of it's head to search for prey on both sides.

in the series...
tullimonstrum appeared in prehistoric chicago where it was seen searching for food and grabbing a sea scorpion, eurypterus.