Gyrodus
|  Gyrodus Temporal range: Jurassic - Cretaceous  | |
|---|---|
 ![]()  | |
| Gyrodus hexagonus from Kelheim, Germany. | |
| Scientific classification | |
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Order: | Pycnodontiformes | 
| Family: | Pycnodontidae | 
| Genus: | Gyrodus | 

Gyrodus hexagonus

Gyrodus circularis
Gyrodus is an extinct genus of pycnodontiform bony fish that lived in the Jurassic and Cretaceous.
Sources
- Fossils (Smithsonian Handbooks) by David Ward
 
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