Pycnosteus

<i>Pycnosteus</i>

Pycnosteus

Extinct genus of jawless fishes

Pycnosteus is an extinct genus of jawless fish from the Devonian. It is thought to have cruised through vegetation, eating small invertebrates which it knocked loose .[1]

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Sources

  1. [1]
    "Pteraspidomorphi: Psammosteida (2): Guerichosteids, Pycnosteids, Psammosteids & Psammolepis". Palaeos Vertebrates.
  • Fishes of the World by Joseph S. Nelson
  • Vertebrate Fossils and the Evolution of Scientific Concepts by W. Sargeant


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