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The Wiggins Formation is a geologic formation in Wyoming. It preserves fossils dating back to the Paleogene period.

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

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

Lithic and Chemical Compositions of Samples from the Wiggins and Tepee Trail Formations, Southern Absaroka Range, Wyoming., Keith Brindley Ketner and Frederick S Fisher., USGS Open File Report 78-223