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Ancient Predator Had a Killer Jaw | National Geographic

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The sharklike Helicoprion lived 275 million years ago and could slice its prey in two with its buzz saw jaw.
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Ancient Predator Had a Killer Jaw | National Geographic

National Geographic
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Date: January 14, 2020

45 thoughts on “Ancient Predator Had a Killer Jaw | National Geographic

  1. This shark was debunked! Years ago. The spiral teeth fossil is from a different fish with the spiral on the TOP jaw, not jutting from the bottom. It was much like the modern dog fishes.

  2. If something works well, nature tends to re use it. This feature just didn't suddenly pop up. It was a dynasty of sharks, that had this jaw. It was seemingly a successful feature so…..
    Why did nature, stop using it?

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