Central Butte Mountains CBM3-30 (Permian of the United States)

Where: White Pine County, Nevada (39.5° N, 115.3° W: paleocoordinates 15.0° N, 36.5° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

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

• 30 feet above base of measured section, immediately above thick chert-pebble conglomerate ("tongue" of Plympton Formation)

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

• group of beds-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal, silty packstone

• silty, crinoidal, skeletal packstone

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 39743: authorized by David Bottjer, entered by Matthew Clapham on 05.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
"Ramose bryozoa"
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Strophomenata
 Productida - Echinoconchidae
 Productida - Productellidae
cf. Echinauris subhorrida Meek 1877
Written "Echinauris" subhorrida
 Productida - Linoproductidae
cf. Grandaurispina "n. sp. A" Muir-Wood and Cooper 1960
 Orthotetida - Derbyiidae
Derbyia sulca Branson 1930
Rhynchonellata
 Spiriferinida - Pennospiriferinidae