Also known as SF 88

Where: Eureka County, Nevada (39.2° N, 116.3° W: paleocoordinates 4.5° S, 84.7° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: M? trilobite zone, Middle Member (Antelope Valley Formation), Ibexian (487.5 - 470.0 Ma)

• Ibexian

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified limestone

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 104434: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011

Creative Commons license: CC BY (attribution)