Where: Pershing County, Nevada (40.3° N, 118.1° W: paleocoordinates 11.2° N, 42.4° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: meeki ammonoid zone, Fossil Hill Member (Prida Formation), Illyrian (247.2 - 242.0 Ma)
• Parafrechites dunni beds
• bed-level stratigraphic resolution
Environment/lithology: basinal (); lithified, lenticular, gray limestone and lithified, calcareous siltstone
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 110987: authorized by Matthew Clapham, entered by Matthew Clapham on 17.06.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
| Cephalopoda | |
"? Michelinoceras cf. campanile" = Trematoceras elegans
"? Michelinoceras cf. campanile" = Trematoceras elegans Muenster 1831 | |
|
Tozerites gemmellaroi Arthaber 1911 ceratite | |
|
Eutomoceras laubei Meek 1877 ceratite
Parafrechites dunni Smith 1914 ceratite | |
|
Longobardites ? parvus Smith 1914 ceratite | |
|
Aplococeras vogdesi Hyatt and Smith 1905 ceratite | |
|
Epigymnites alexandrae Smith 1914 ceratite | |