D 1871 CO (Ordovician of the United States)

Also known as SF 203

Where: Eureka County, Nevada (39.2° N, 116.3° W: paleocoordinates 6.5° S, 77.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: C Member (Copenhagen Formation), Mohawkian (457.3 - 451.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified siltstone

• middle shelf
• calcareous

Size class: macrofossils

Preservation: replaced with silica

Collected by J. Ross, Jr.

Collection methods: bulk,

Primary reference: R. J., J.r. Ross. 1970. Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada. United States Geological Survey Professional Paper 639:1-99 [S. Finnegan/S. Finnegan/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 104488: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Protorthida - Skenidiidae
? Skenidioides sp. Schuchert and Cooper 1931
 Orthida -
Orthida indet. Schuchert and Cooper 1932
"Orthid"
 Orthida - Dalmanellidae
"Cristiferina cristifera" = Paucicrura
"Cristiferina cristifera" = Paucicrura
Strophomenata
 Strophomenida - Sowerbyellidae
"Eoplectodonta alternata" = Eoplectodonta (Eoplectodonta) alternata Butts 1942
? Sowerbyella sp. Jones 1928
 Strophomenida - Bimuriidae
? Bimuria sp. Ulrich and Cooper 1942