Gyrodus
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| Gyrodus Fossil range: Jurassic - Cretaceous |
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 Gyrodus hexagonus from Kelheim, Germany.
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Gyrodus is an extinct genus of pycnodontiform bony fish that lived in the Jurassic and Cretaceous.
[edit] Sources
- Fossils (Smithsonian Handbooks) by David Ward
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