Where: Pershing County, Nevada (40.3° N, 118.1° W: paleocoordinates 10.9° N, 41.8° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: meeki ammonoid zone, Fossil Hill Member (Prida Formation), Illyrian (247.2 - 242.0 Ma)
• Frechites nevadanus beds
• 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 (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 38925: authorized by Alistair McGowan, entered by Alistair McGowan on 17.05.2004, edited by Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Eutomoceras dunni Smith 1904 ceratite
Frechites nevadanus Mojsisovics 1888 ceratite
Gymnotoceras blakei Gabb 1864 ceratite | |
Aplococeras smithi Silberling and Nichols 1982 ceratite | |
Longobardites parvus Smith 1914 ceratite | |
Tropigastrites louderbacki Hyatt and Smith 1905 ceratite | |
"? Michelinoceras cf. campanile" = Trematoceras elegans
"? Michelinoceras cf. campanile" = Trematoceras elegans Muenster 1831 | |
Grypoceras whitneyi Gabb 1864 nautiloid | |
Atractites solidus Smith 1914 belemnite | |
Bivalvia | |
Daonella cf. sturi Benecke 1868 oyster |