Mega Croc Scute - Sarcosuchus FossilGrowing as long as a school bus with a set of natural bony armor, Sarcosuchus was a true apex predator that even the dinosaurs feared. This extinct ancestor was similar to modern crocodilians, but far bigger and even more dangerous. This specimen is a fossil fragment of a Sarcosuchus scute, one of the bony plates that covered the animal's back. It was recovered from the Elrhaz Formation and dates back 112,000,000 years to the early Cretaceous.