Where: Nevada (40.4° N, 118.1° W: paleocoordinates 9.4° N, 42.8° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Illyrian to Illyrian (247.2 - 235.0 Ma)
• Ammonoids of the meeki, occidentalis, and subasperum zones
• group of beds-level stratigraphic resolution
Environment/lithology: lithified, silty limestone
Size class: macrofossils
Collected by Fortieth Parallel Expedition in 1867-1869; reposited in the USNM
Primary reference: F. B. Meek. 1877. Part I. Palaeontology. Report of the Geological Exploration of the Fortieth Parallel 4:1-197 [P. Wagner/P. Wagner/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 142621: authorized by Matthew Clapham, entered by Matthew Clapham on 14.04.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
| Cephalopoda | |
"Trachyceras (Protrachyceras) americanum" = Eoprotrachyceras americanum2, "Protrachyceras meeki n. sp." = Eoprotrachyceras meeki1, "Trachyceras subasperum n. sp." = Eoprotrachyceras subasperum1
| |
"Arcestes gabbi n. sp." = Proarcestes gabbi
"Arcestes gabbi n. sp." = Proarcestes gabbi Meek 1877 ceratite | |
"Ceratites nevadanus n. sp." = Frechites nevadanus1, Eudiscoceras gabbi n. gen. n. sp., Parafrechites meeki n. sp.1
"Ceratites nevadanus n. sp." = Frechites nevadanus1 Mojsisovics 1888 ceratite Gymnotoceras blakei (pl 11, figs 6-6a in Meek, 1877)
Eudiscoceras gabbi n. gen. n. sp. Meek 1877 ceratite | |
"Belemnites nevadensis n. sp." = Calliconites nevadensis
"Belemnites nevadensis n. sp." = Calliconites nevadensis Meek 1877 belemnite | |
| Bivalvia | |
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