Onyx Marble

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The Onyx Marble is a geologic formation in Arizona. It preserves fossils dating back to the Neogene period.

See also

• List of fossiliferous stratigraphic units in Arizona
• Paleontology in Arizona

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.
• Onyx stone comprises different minerals, including quartz, feldspar, and agate.

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