Medicine Range MR-765 (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)

• 765 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 39795: authorized by David Bottjer, entered by Matthew Clapham on 06.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
"Ramose bryozoa"
Stenolaemata
 Fenestrata -
Fenestrata indet. Astrova and Morozova 1956
"Fenestrate bryozoa"
Strophomenata
 Productida - Echinoconchidae
 Productida - Rugosochonetidae
 Orthotetida - Derbyiidae
Derbyia sulca Branson 1930
Rhynchonellata
 Spiriferinida - Pennospiriferinidae