sea scorpion

5-Foot-Long Sea Scorpion Discovered Beneath Iowa River

By R. Siva Kumar - Sep 02, 2015 08:05 AM EDT

Fossilized sea scorpion as big as a grown man has been found beneath the Iowa river.

Paleontologists Find 467 Million-Year-Old Sea Scorpion 'King'

By Peter R - Sep 01, 2015 03:40 PM EDT

Called Pentecopterus decorahensis, the sea scorpion was the undisputed king of predators in the sea, researchers who analysed its fossil, said.

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