In 2010, a portion of the Upper Iowa River was excavated and fossils of the giant Sea Scorpion were discovered. Luther ...

Its meandering ways made it vulnerable to predators, like the Gorgonopsids. The giant sea scorpion was an enormous predatory aquatic arthropod. This ancient scorpion reached almost six feet ...

They may be a close second to an extinct giant sea scorpion. Researchers in Europe and North America have been collecting fragments and footprints of the huge bugs since the late 1800s.