• Source: Great Valley Group
    • The Great Valley Group is a proposed and widely-accepted renaming of the Great Valley Sequence, a geologic group in California. It preserves fossils dating back to the Jurassic period.


      See also



      List of fossiliferous stratigraphic units in California
      Paleontology in California


      References



      Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.

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