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

• Section the same as Composite Antelope Valley section of Ross 1970. About 50-70 feet above top of basal sandstone member A.

Environment/lithology: lithology not reported

Size class: macrofossils

Preservation: replaced with silica

Collected by F.C. Shaw and H.B. Whittington in 1965

Collection methods: surface (float),

Primary reference: R. J., J.r. Ross and F. C. Shaw. 1972. Distribution of the Middle Ordovician Copenhagen Formation and its trilobites in Nevada. United States Geological Survey Professional Paper 749:1-33 [M. Hopkins/M. Hopkins/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 105554: authorized by Melanie Hopkins, entered by Melanie Hopkins on 22.02.2011

Creative Commons license: CC BY (attribution)