<page_title> Evolution of fish </page_title> <section_title> Devonian: Age of fishes </section_title> <table> <cell> Middle Devonian (393–383 Ma): Cartilaginous fishes, consisting of sharks, rays and chimaeras, appeared about 395 Ma. </cell> </table>
Cartilaginous fishes, consisting of sharks, rays and chimaeras, appeared by about 395 million years ago, in the middle Devonian.