USGS banner

Stratigraphy of Petrified Forest National Park

Click on any stratigraphic name for more information.
Return to Main Page
Fossil logs at Petrified Forest National Park. Click here to begin a geologic image tour of Petrified Forest National Park.

To learn more about Petrified Forest National Park check out the National Park Service website at: http://www.nps.gov/pefo/.
Generalized stratigraphy modified after Billingsley, G.H., 1985, General stratigraphy of Petrified Forest National Park: Museum of Northern Arizona Bulletin, v. 54, p. 3-8.

Stratigraphic unit information is modified from the USGS GeoLex (Lexicon of Geology): http://ngmdb.usgs.gov/Geolex/geolex_qs.html.

A generalized geologic time scale is available at: http://3dparks.wr.usgs.gov/coloradoplateau/timescale.htm.

U.S. Department of the Interior - U.S. Geological Survey - Geology Discipline
Privacy statement -- General disclaimer -- Accessibility
The URL of this page is: http://3dparks.wr.usgs.gov/coloradoplateau/petrifiedforest_strat.htm
Maintained by Webmaster, Menlo Park, CA
Last modified: 5/6/2006

www.usa.gov: Your first click to the U.S. Government
Quaternary deposits Bidahochi Formation volcanic rocks Owl Rock Member Petrified Forest Member Shinarump Conglomerate Chinle Formation Moenkopi Formation