Where: Wyoming (42.8° N, 108.9° W: paleocoordinates 14.1° N, 31.4° W)

• coordinate based on nearby landmark

• outcrop-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.

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

Size class: macrofossils

Preservation: replaced with silica

Primary reference: E. L. Yochelson, D. W. Boyd, and B. R. Wardlaw. 1985. Redescription of Bellerophon bittneri (Gastropoda: Triassic) from Wyoming. Contributions to Geology, University of Wyoming 23:99-104 [M. Clapham/M. Clapham/O. Alfaro]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 121327: authorized by Matthew Clapham, entered by Matthew Clapham on 02.12.2011

Creative Commons license: CC BY (attribution)