Also known as SF 600

Where: Clark County, Nevada (36.3° N, 115.7° W: paleocoordinates 6.2° S, 85.9° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Pseudocybele nasuta trilobite zone, Ninemile Formation, Blackhillsian (474.9 - 470.0 Ma)

• Ibexian, Zone J

• group of beds-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified limestone and lithified shale

Size class: macrofossils

Preservation: replaced with silica

Collected by J. Ross, Jr.

Collection methods: surface (float),

Primary reference: R. J. Ross, Jr. and C. R. Longwell. 1964. Middle and Lower Ordovician Formations in Southernmost Nevada and Adjacent California. United States Geological Survey Bulletin 1180-C:C1-C101 [S. Finnegan/S. Finnegan/J. Marcot]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 104355: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011

Creative Commons license: CC BY (attribution)