Also known as PEFO

Where: Apache County, Arizona (35.1° N, 109.8° W: paleocoordinates 10.8° N, 48.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Petrified Forest Member (Chinle Formation), Norian (228.0 - 208.5 Ma)

• "Approximately 54 meters below a prominent tuffaceous sandstone bed known as the Black Forest Bed (Ash 1992). Riggs et al. (2003) have determined a maximum age for this bed, and thus a minimum age for the quarries, of 213 +/- 1.7 based on U-Pb ages of detrital zircons."

• bed-level stratigraphic resolution

Environment/lithology: fine channel fill; gray, green claystone and gray, red, silty claystone

Size class: macrofossils

Collection methods: quarrying, surface (float), surface (in situ), mechanical,

Primary reference: W. Parker and R. B. Irmis. 2005. Advances in Late Triassic vertebrate paleontology based on new material from Petrified Forest National Park, Arizona. Vertebrate Paleontology in Arizona, New Mexico Museum of Natural History and Science Bulletin 29:45-58 [M. Carrano/K. Maguire/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 57685: authorized by Matthew Carrano, entered by Kaitlin Maguire on 16.12.2005, edited by Matthew Carrano, Bryan Gee and Richard Butler

Creative Commons license: CC BY (attribution)