Polygyrodus
Encyclopedia
Polygyrodus is an extinct genus of prehistoric bony fish that lived during the Late Cretaceous
Late Cretaceous
The Late Cretaceous is the younger of two epochs into which the Cretaceous period is divided in the geologic timescale. Rock strata from this epoch form the Upper Cretaceous series...

 epoch.

See also

  • Prehistoric fish
    Prehistoric fish
    Prehistoric fish refers to early fish that are known only from fossil records. They are the earliest known vertebrates, and include the first and extinct fish that lived through the Cambrian to the Tertiary. The study of prehistoric fish is called paleoichthyology...

  • List of prehistoric bony fish
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