Mixopterus kiaeri, giant eurypterid (Replica) Stegosaurus This is the ungual phalanx

This is the ungual phalanx (toe) of a jevenile Edmotosaurus found in the Hell Creek Formation of South Dakota

During the Eocene

Because they have apparently undergone little change

9 ft) long

Mixopterus kiaeri, giant eurypterid (Replica) Stegosaurus This is the ungual phalanxFrom about 417 to 354 million years ago this massive trilobite predator lived in the brackish waters of the ancient seas of what we now call Norway. To date we know there have been at least 10,000 species of trilobites identified but as we know none of them were predators . Many a trilobite species fell prey to this Giant. Mixopterus, was a strange somewhat scorpion like animal. Very few specimens of this animal have been obtained, but this species is