Earliest sea scorpion discovered in Iowa

Huge predator stalked ocean 460 million years ago

illustration of giant sea scorpion

SEA MONSTER  A new species of giant sea scorpion (illustrated) lived about 460 million years ago and may have used paddlelike limbs to swim.

Patrick Lynch/Yale Univ.

This article is only available to Science News subscribers.

Subscribers, enter your e-mail address to access our archives.

Not a subscriber?

Science News is a nonprofit.

Support us by subscribing now.

More Stories from Science News on Paleontology

From the Nature Index

Paid Content