The Ellis Formation is a geologic formation of the Ellis Group in Montana.

It preserves fossils dating back to the Jurassic period.

See also

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

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.

This article about a specific stratigraphic formation in Montana is a stub. You can help Wikipedia by expanding it.

• v
• t
• e