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.

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