Where: Arizona (35.1° N, 111.7° W: paleocoordinates 9.2° N, 36.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Alpha Member (Kaibab Formation), Roadian (272.3 - 268.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Primary reference: A. K. Miller and A. G. Unklesbay. 1942. Permian nautiloids from western United States. Journal of Paleontology 16(6):719-738 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 113085: authorized by Matthew Clapham, entered by Matthew Clapham on 20.07.2011

Creative Commons license: CC BY (attribution)