Elegestolepis

The elegestolepis is a primitive shark that lived during the Silurian and Devonian periods. It was closely related to the mongolepis and the Polymerolepis. It is only known from placoid scales. The oldest of these scales have been dated back to the Ludlow epoch (427.4 Ma to 423 Ma),[1][2] making elegestolepis the oldest known shark.[3]

References

  1. ↑ "Fossilworks: Elegestolepis". fossilworks.org. Retrieved 2016-05-05.
  2. ↑ "The Paleobiology Database". paleobiodb.org. Retrieved 2016-05-05.
  3. ↑ "Earliest Sharks". www.elasmo-research.org. Retrieved 2016-05-05.


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