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)
• 102 ft (31 m) Stratigraphically above base of Fossil Hill Member of Prida Formation. Section complicated by faulting. Rotelliformis Zone.
• group of beds-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 (in situ),
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 39089: authorized by Alistair McGowan, entered by Alistair McGowan on 20.05.2004, edited by Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Daonella americana Smith 1914 oyster |