Where: Nevada (39.0° N, 116.0° W)

• Paleocoordinates: 24.5° N, 118.0° W (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Presbynileus ibexensis - Pseudocybele nasuta trilobite zone, Ninemile Formation (Pogonip Group), Blackhillsian (475.3 - 471.3 Ma)

• Listed as Lower Arenig; local series zone I / zone J

• group of beds-level stratigraphic resolution

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

Size classes: macrofossils, mesofossils

Preservation: trace, concretion

Primary reference: J. Sprinkle and T. E. Guensburg. 1995. Origin of echinoderms in the Paleozoic evolutionary fauna: the role of substrates. Palaios 10:437-453 [G. Webster/G. Webster]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 77185: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 28.12.2007

Creative Commons license: CC0 (CC0)