Newly discovered 400-million-year-old giant worm had killer jaws

Scientists have discovered a new species of extinct, marine worms that had snapping jaws and grew to an estimated 3 feet in length. The species, called Websteroprion armstrongi, lived some 400 million years ago — and is believed to be Earth’s oldest “Bobbit worm.” The species is described in a study published this week in the journal Scientific Reports.
Bobbit worms are giant marine monsters that dwell on ocean floors to this day. They can be as long as 10 feet, and their