Fossil of the Late Jurassic shark Protospinax annectans from Solnhofen and Eichstätt, Germany. Credit: Sebastian Stumpf The evolutionary history of sharks and rays has been…
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Fossil of the Late Jurassic shark Protospinax annectans from Solnhofen and Eichstätt, Germany. Credit: Sebastian Stumpf The evolutionary history of sharks and rays has been…