Where: Navajo County, Arizona (35.0° N, 109.9° W: paleocoordinates 10.7° 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)

• "mudstone between Sonsela Sandstone and brown sandstone, about 6 metres below brown sandstone"; lower part of member

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; mudstone

Size class: macrofossils

Collected by UCMP in 1985; reposited in the UCMP

Primary reference: R. A. Long and P. A. Murry. 1995. Late Triassic (Carnian and Norian) Tetrapods from the Southwestern United States. New Mexico Museum of Natural History and Science Bulletin 4:1-254 [M. Carrano/M. Carrano/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 92928: authorized by Richard Butler, entered by Richard Butler on 11.12.2009

Creative Commons license: CC BY (attribution)