Two ‘superbly preserved’ fossil lampreys from the Jurassic period help piece together the past of the unusual jawless fish. Two ‘superbly preserved’ fossil lampreys from the Jurassic period help piece together the past of the unusual jawless fish.
Lampreys are blood-sucking predatory fish. The earliest ancestors of all vertebrates, including ourselves, were thought to resemble their worm-like babies. Now, recently discovered fossils have overturned that theory, raising new questions about what our ancestors were really like.