Where: Eureka County, Nevada (39.2° N, 116.4° W: paleocoordinates 5.1° S, 83.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pseudocybele nasuta trilobite zone, Ninemile Formation, Blackhillsian (474.9 - 470.0 Ma)

• a steeply dipping side slope several meters below the

•apparent ‘‘basal ledge’’ in what is probably the middle of the Ninemile Shale

•(Zone J), , 0.8 km (0.5 mi) up Whiterock Canyon

•from the end of the dirt track, Monitor Range, about 48 km (30 mi) southwest

•of Eureka, Eureka County, central Nevada.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, brown, green shale and poorly lithified, concretionary packstone

Size class: macrofossils

Reposited in the TMM

Primary reference: D. B. Blake, T. E. Guensburg, J. Sprinkle and C. Sumrall. 2007. A new, phylogenetically significant Early Ordocivian asteroid (Echinodermata). Journal of Paleontology 81(6):1257-1265 [L. Villier/L. Villier/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174459: authorized by Pete Wagner, entered by Pete Wagner on 13.11.2015

Creative Commons license: CC BY (attribution)