Where: Elko County, Nevada (40.5° N, 114.8° W: paleocoordinates 15.4° N, 35.8° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Plympton Formation (Park City Group), Capitanian (264.3 - 259.5 Ma)

• 75 feet below base of Gerster Formation.

•Davydov et al. (2018) dated an ash bed in the upper Meade Peak Mb (Phosphoria Formation) as latest Capitanian, 260.57 Ma. The Plympton Formation is traditionally thought to be equivalent in northeastern Nevada to the Meade Peak of Utah and Idaho. These collections come from the upper Plympton Formation, near the contact with the Gerster Formation, so are likely Capitanian in age.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; limestone

Size class: macrofossils

Preservation: replaced with silica

Collection methods: bulk, chemical,

Primary reference: B. R. Wardlaw. 1977. The biostratigraphy and paleoecology of the Gerster Limestone (Upper Permian) in Nevada and Utah. U.S.G.S. Open File Report 77(470):1-125 [D. Bottjer/M. Clapham/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 39496: authorized by David Bottjer, entered by Matthew Clapham on 30.05.2004

Creative Commons license: CC BY (attribution)