Where: Nevada (38.0° N, 116.0° W: paleocoordinates 3.2° S, 89.4° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Swarbrick Formation, Dresbachian (497.0 - 485.4 Ma)
• Aphelaspis zone. Listed as Dresbachian Age
• formation-level stratigraphic resolution
Environment/lithology: basinal (); lithified lime mudstone and lithified, black chert
Size classes: macrofossils, mesofossils
Preservation: replaced with silica
Primary reference: H. E. Cook, M. E. Taylor, and J. F. Miller. 1989. Day 2: Late Cambrian and Early Ordovician stratigraphy, biostratigraphy and depositional environments, Hot Creek Range, Nevada. 28th International Geological Congress 28-36 [P. Novack-Gottshall/P. Hearn/M. Uhen]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 75428: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 09.10.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Porifera indet. Grant 1836 | |
Artiopoda | |
Glyptagnostus reticulatus Angelin 1851 | |
Pseudagnostus sp. Jaekel 1909 | |
Trilobita | |
Aphelaspis subditus Palmer 1962 trilobite |