Medicine Range MR-446 (Permian of the United States)

Where: Elko County, Nevada (40.3° N, 115.2° W: paleocoordinates 15.6° N, 36.0° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Gerster Formation (Park City Group), Capitanian (265.1 - 259.9 Ma)

• 446 feet above base of Gerster Formation

•originally entered as Wordian: changed to Capitanian on 19 September 2006

• 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 39784: authorized by David Bottjer, entered by Matthew Clapham on 06.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida -
Pectinoidea indet. Rafinesque 1815 scallop
Strophomenata
 Productida - Echinoconchidae
Rhynchonellata
 Athyridida - Athyrididae
Composita mira Girty 1899
 Spiriferinida - Pennospiriferinidae