# Naco Formation

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Geologic formation in Arizona

Naco Formation Stratigraphic range: Pennsylvanian Type Formation Lithology Primary Limestone Other Shale, siltstone Location Region Arizona Country United States

Indian Gardens Paleo Site with the Naco Formation exposed and available to the public

The **Naco Formation** is a [geologic formation](/source/Formation_(geology)) in [Arizona](/source/Arizona). It preserves [fossils](/source/Fossils) dating back to the [Pennsylvanian](/source/Pennsylvanian_(geology)) [subperiod](/source/Period_(geology)).

Indian Gardens Paleo Site approximately 12 miles east of Payson Arizona on highway 260

Fossils from the [Kohls Ranch](/source/Kohls_Ranch) locality of [Gila County, Arizona](/source/Gila_County%2C_Arizona), include [bivalve](/source/Bivalve) and [gastropod](/source/Gastropod) [molluscs](/source/Mollusc), [brachiopods](/source/Brachiopod), [bryozoans](/source/Bryozoa), [crinoids](/source/Crinoid), [cnidarians](/source/Cnidarian) and [chondrichthyan teeth](/source/Chondrichthyes).[1][2]

Indian Gardens Paleo Site with species identification sign

## See also

- [Paleontology portal](https://en.wikipedia.org/wiki/Portal:Paleontology)

- [List of fossiliferous stratigraphic units in Arizona](/source/List_of_fossiliferous_stratigraphic_units_in_Arizona)

- [Paleontology in Arizona](/source/Paleontology_in_Arizona)

## References

1. **[^](#cite_ref-1)** [*Guide to Fossils of the Naco Formation, Kohl Ranch Area, Arizona,* Arizona State](http://www.savalli.us/BIO113/113downloads/FossilIDGuide.pdf)

1. **[^](#cite_ref-2)** Brew, D. C. and S. Beus, 1976, *A Middle Pennsylvanian Fauna from the Naco Formation near Kohl Ranch, Central Arizona.* Journal of Paleontology, v. 50: pp. 888-906

- Various Contributors to the Paleobiology Database. ["Fossilworks: Gateway to the Paleobiology Database"](https://web.archive.org/web/20220325060448/http://www.fossilworks.org/cgi-bin/bridge.pl?action=home). Archived from [the original](https://www.fossilworks.org/) on 25 March 2022. Retrieved 17 December 2021.[*[user-generated source?](https://en.wikipedia.org/wiki/Wikipedia:UGC)*]

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