‘Bizarre,’ Huge Sea Scorpion Found in Ancient Meteorite Crater

'Bizarre,' Huge Sea Scorpion Found in Ancient Meteorite Crater

By Laura Geggel
www.livescience.com
9-1-15

      About 460 million years ago, a sea scorpion about the size of an adult human swam around in the prehistoric waters that covered modern-day Iowa, likely dining on bivalves and squishy eel-like creatures, a new study finds.

The ancient sea scorpions are eurypterids, a type of arthropod that is closely related to modern arachnids and horseshoe crabs. The findings — which include at least 20 specimens — are the oldest eurypterid fossils on record by about 9 million years, said study lead researcher James Lamsdell, a postdoctoral associate of paleontology at Yale University. […]

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