Where: Texas (30.3° N, 103.3° W: paleocoordinates 1.1° N, 33.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Cathedral Mountain Formation, Kungurian (279.3 - 272.3 Ma)

• Leonard Formation

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Preservation: mold/impression

Collected by John W. Skinner; reposited in the SUI

Primary reference: A. K. Miller. 1945. Some exceptional Permian ammonoids from west Texas. Journal of Paleontology 19(1):14-21 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 131116: authorized by Matthew Clapham, entered by Matthew Clapham on 20.07.2012

Creative Commons license: CC BY (attribution)