Where: Arizona (35.0° N, 111.8° W: paleocoordinates 9.1° N, 36.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• Very top of the alpha member

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Collected by L.F. Brady

Primary reference: A. K. Miller and W. Youngquist. 1949. American Permian nautiloids. Geological Society of America Memoir 41:1-218 [P. Wagner/P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 113416: authorized by Matthew Clapham, entered by Matthew Clapham on 30.07.2011

Creative Commons license: CC BY (attribution)