Also known as SF 80
Where: Clark County, Nevada (37.3° N, 115.8° W: paleocoordinates 5.9° S, 84.9° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: J? trilobite zone, Ninemile Formation, Blackhillsian (474.9 - 470.0 Ma)
• Whiterockian; Blackhillsian; Was Antelope Valley Limestone Lower Member, but Zone J is Ninemile
• bed-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified limestone
Size class: macrofossils
Preservation: replaced with silica
Collected by J. Ross, Jr.
Collection methods: bulk,
Primary reference: R. J., J.r. Ross. 1970. Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada. United States Geological Survey Professional Paper 639:1-99 [S. Finnegan/S. Finnegan/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 104431: authorized by Seth Finnegan, entered by Seth Finnegan on 07.02.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
| Trilobita | |
|
Ischyrotoma sp. Raymond 1925 trilobite | |
"Goniotelina sp." = Acidiphorus
"Goniotelina sp." = Acidiphorus Raymond 1925 trilobite | |
|
Ptyocephalus sp. Agassiz 1843 trilobite | |
|
Pseudomera sp. Holliday 1942 trilobite
Pseudocybele sp. Ross 1951 trilobite | |
| Rhynchonellata | |
|
Hesperonomia cf. planidorsalis Ulrich and Cooper 1936
Hesperonomia cf. nemea Hall and Whitfield 1877 | |