Where: Pershing County, Nevada (40.3° N, 118.1° W: paleocoordinates 11.2° N, 42.3° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: rotelliformis ammonoid zone, Fossil Hill Member (Prida Formation), Illyrian (247.2 - 242.0 Ma)

• Single float block at least 130 feet (40 m) above base of Fossil Hill Member of Prida Formation. Rotelliformis Zone.

• bed-level stratigraphic resolution

Environment/lithology: basinal (); lithified, lenticular, gray limestone and lithified, calcareous siliciclastic

Size class: macrofossils

Collected by N.J. Silberling in 1956-1965; reposited in the USNM

Collection methods: surface (float),

Primary reference: N. J. Silberling and K. M. Nichols. 1982. Middle Triassic Molluscan Fossils of Biostratigraphic Significance from the Humboldt Range, Northwestern Nevada. Geological Survey Professional Paper 1207 [A. McGowan/A. McGowan/A. McGowan]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 40749: authorized by Alistair McGowan, entered by Alistair McGowan on 30.06.2004

Creative Commons license: CC BY (attribution)