Metaspriggina

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Your Jaw May Come From This Ancient Fish

Minnow-sized creature had something akin to one 500M years ago

(Newser) - Introducing Metaspriggina, a minnow-sized fish that lived about 500 million years ago and appears to occupy a crucial branch of your family tree. Scientists say the creature might just be the ancestor of nearly all vertebrates, reports LiveScience . The revelation comes after study of dozens of remarkably well-preserved Metaspriggina fossils...

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