Also known as SF 178

Where: Clark County, Nevada (36.3° N, 115.7° W: paleocoordinates 5.4° S, 87.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: N-O zone, Antelope Valley Formation (Pogonip Group), Ibexian (487.5 - 470.0 Ma)

• Ibexian

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified dolomite

Size class: macrofossils

Preservation: replaced with silica

Collected by J. Ross, Jr.

Collection methods: bulk,

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 104312: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)