Where: Montana (44.7° N, 112.8° W: paleocoordinates 17.1° N, 32.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Franson Member (Park City Formation), Wuchiapingian (259.9 - 254.2 Ma)

• Davydov et al. 2017 dated an ash bed in the upper Meade Peak Member at 260.57 ± 0.07 / 0.14 / 0.31 Ma, indicating that the Meade Peak is as young as uppermost Capitanian.

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified limestone

Size class: macrofossils

Preservation: replaced with silica

Primary reference: G. A. Cooper and R. E. Grant. 1976. Permian Brachiopods from West Texas, IV. Smithsonian Contributions to Paleobiology 21:1923-2607 [D. Bottjer/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105516: authorized by Matthew Clapham, entered by Matthew Clapham on 21.02.2011

Creative Commons license: CC BY (attribution)