Jamoytius kerwoodi
| Jamoytius kerwoodi Fossil range: Silurian |
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Extinct (fossil)
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Jamoytius kerwoodi was an extinct species of primitive jawless fish that lived in the
Silurian period.
It was a somewhat eel-like creature with several long fins running along its body, making it a good swimmer. J. kerwoodi resembled a lamprey, especially with its rounded mouth and elongated body. However, as it had no teeth or teeth-like structures in its mouth, it was not carnivorous like its distant modern-day relative, the lamprey. More likely, it was a filter-feeder or a detrius-feeder (possibly in the manner of larval lampreys).
References
Long, John A. The Rise of Fishes: 500 Million Years of Evolution Baltimore: The Johns Hopkins University Press, 1996. ISBN 0-8018-5438-5
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