Fossil Fish

  • Protosphyraena, fossil pectoral fin, Trent River
  • Ancient swordfish, fossil pectoral fin -80 million yrs
  • Edaphodon sp. (Ratfish), Trent River

    • Fish first appeared during the Cambrian explosion, around 530 million years ago (Ma).

    Early fish from the fossil record are represented by a group of small, jawless, armoured fish known as ostracoderms. Jawless fish lineages are mostly extinct.

    An extant clade, the lampreys may approximate ancient pre-jawed fish. The first jaws are found in Placoderm fossils.

    Wikipedia