Where: Apache County, Arizona (34.5° N, 109.3° W: paleocoordinates 10.1° N, 48.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Blue Mesa Member (Chinle Formation), Norian (228.0 - 208.5 Ma)

• Given as low in the Blue Member of the Petrified Forest Formation = Blue Mesa Member of the Chinle Formation. Adamanian LVF, suggested to be late Carnian, but recent radiometric dates indicate a Norian age for the Chinle

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; nodular, sideritic mudstone

Size class: macrofossils

Collected by S. E. Krzyzanowski; reposited in the NMMNH

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

Primary reference: L. E. Zanno, A. B. Heckert, S. E. Krzyzanowski and S. G. Lucas. 2002. Diminutive metoposaurid skulls from the Upper Triassic Blue Hills (Adamanian: latest Carnian) of Arizona. In A. B. Heckert, S. G. Lucas (eds.), Upper Triassic Stratigraphy and Paleontology, New Mexico Museum of Natural History and Science Bulletin 21:121-125 [R. Butler/R. Butler]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 93571: authorized by Richard Butler, entered by Richard Butler on 25.01.2010

Creative Commons license: CC BY (attribution)