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Gnathostomes: Jawed Fishes

Actinopterygii and Sarcopterygii

Actinopterygii and Sarcopterygii

The (a) sockeye salmon (Actinopterygii) and (b) coelacanth (Sarcopterygii) are both bony fishes of the Osteichthyes clade. The coelacanth, sometimes called a lobe-finned fish, was thought to have gone extinct in the Late Cretaceous period, 100 million years ago, until one was discovered in 1938 near the Comoros Islands between Africa and Madagascar.

Source

    Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

    "OpenStax College, Fishes. October 17, 2013."
    http://cnx.org/content/m44687/latest/Figure_29_02_07ab.jpg OpenStax CNX CC BY 3.0.

Related Terms

  • Osteichthyes
  • Chondrichthyes
  • operculum
  • ossified
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