Where: Nevada (40.8° N, 115.1° W: paleocoordinates 6.2° S, 79.8° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Psephosthenaspis pseudobathyurus trilobite zone, Shingle Limestone Formation (Pogonip Group), Rangerian (470.0 - 470.3 Ma)
• Woodward's Formation D. Equivalent to the Shingle Formation. Given as Whiterockian, but this part now is Rangerian. Zone L. (PJW).
• bed-level stratigraphic resolution
Environment/lithology: lithified, shelly/skeletal limestone
Size class: macrofossils
Reposited in the USNM
Collection methods: bulk, mechanical,
Primary reference: R. A. Fortey and M.L. Droser. 1996. Trilobites at the base of the Middle Ordovician, western United States. Journal of Paleontology 70(1):73-99 [S. Holland/S. Holland/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 37485: authorized by Steven Holland, entered by Steven Holland on 15.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Kanoshia reticulata Fortey and Droser 1996 trilobite | |
Uromystrum cf. validum trilobite
Psephosthenaspis pseudobathyurus Ross and Barnes 1967 trilobite |