Where: Nevada (39.0° N, 116.0° W: paleocoordinates 3.2° S, 88.4° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Dunderbergia trilobite zone, Dunderberg Shale B Member (Nopah Formation), Steptoean (497.0 - 493.5 Ma)
• Listed as upper half of Dunderbergia zone
• group of beds-level stratigraphic resolution
Environment/lithology: slope; lithified, shelly/skeletal limestone and poorly lithified shale
Size classes: macrofossils, mesofossils
Primary reference: A. R. Palmer. 1960. Trilobites of the Upper Cambrian Dunderberg Shale, Eureka District, Nevada. United States Geological Survey Professional Paper 334-C:53-107 [P. Novack-Gottshall/P. Hearn/M. Hopkins]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 75270: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 03.10.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Lingulata | |
Acrotretida "indet. sp.1" Kuhn 1949
Acrotretida "indet. sp.2" Kuhn 1949 | |
Trilobita | |
"Bynumiella acuminata" = Aphelotoxon acuminata
"Bynumiella acuminata" = Aphelotoxon acuminata Palmer 1960 trilobite | |
Dunderbergia polybothra Palmer 1960 trilobite | |
Morosa longispina Palmer 1960 trilobite
"Sigmocheilus utahensis" = Strigambitus utahensis Resser 1942 trilobite
Cernuolimbus orygmatos Palmer 1960 trilobite | |
Olenus wilsoni trilobite | |
Litocephalus bilobatus trilobite | |
Artiopoda | |
"Pseudagnostus acutus" = Acmarhachis acuta, Homagnostus obesus
"Pseudagnostus acutus" = Acmarhachis acuta Kobayashi 1938
Homagnostus obesus Belt 1867 | |
Pseudagnostus communis Hall and Whitfield 1877 |