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Polygyrodus Temporal range: Late Cretaceous PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	†Pycnodontiformes
Genus:	†Polygyrodus White, 1927

Polygyrodus is an extinct genus of prehistoric ray-finned fish that lived during the Late Cretaceous epoch. The name is a combination of the Greek words poly (many), gyro (round), and odoy (tooth).

See also

• Prehistoric fish
• List of prehistoric bony fish

References

1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 364: 560. Retrieved 2009-02-27.
2. "Gyrodus - definition, etymology and usage, examples and related words". www.finedictionary.com. Retrieved 2020-05-13.

v t e Pycnodontiformes
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Subclass: Neopterygii Actinopterygii see Actinopterygii Neopterygii see Neopterygii Pycnodontiformes see below↓ Pycnodontiformes
Pycnodontiformes Acrorhinichthys Apomesodon Arduafrons Athrodon Grimmenodon Gyrodus Macromesodon Paramesturus Piranhamesodon Thurmondella Mesturidae Mesturus Micropycnodon? Brembodontidae Brembodus Eomesodon? Gibbodon? Serrasalmimidae Damergouia Diastemapycnodus Eoserrasalmimus Polygyrodus Serrasalmimus Coccodontoidea Congopycnodus Gebrayelichthyidae Gebrayelichthys Maraldichthys Coccodontidae Coccodus Corusichthys Cosmodus? Hensodon Ichthyoceros? Paracoccodus Trewavasia Gladiopycnodontidae Ducrotayichthys Gladiopycnodus Hayolperichthys Ichthyoceros? Joinvillichthys Monocerichthys Pankowskichthys Rostropycnodus Stenoprotome Tricherichthys Pycnodontidae Acrotemnus Agassizilia? Akromystax Anomoeodus Brauccipycnodus Coelodus Costapycnodus Gregoriopycnodus Haqelpycnodus Iemanja Libanopycnodus Macropycnodon? Neoproscinetes Njoerdichthys Ocloedus Potiguara Rhinopycnodus Sigmapycnodus Stemmatodus Stenamara Tepexichthys Texasensis Thiollierepycnodus Turbomesodon Proscinetinae Neoproscinetes Proscinetes Thiollierepycnodus? Turbomesodon? Turboscinetes Nursalliinae Abdobalistum Flagellipinna Neomesturus? Nursallia Palaeobalistum? Paranursallia Pycnodontinae Agoultpycnodus Oropycnodus Polazzodus Pycnodus Scalacurvichthys Sylvienodus Tergestinia

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