Where: Nevada (40.5° N, 118.2° W: paleocoordinates 11.1° N, 41.7° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Acrochordiceras hyatti zone, Bithynian (247.2 - 242.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified limestone and lithified siltstone

Size class: macrofossils

Primary reference: H. Bucher. 1992. Ammonoids of the Hyatti Zone and the Anisian transgression in the Star Peak Group, Northwestern Nevada, USA. Palaeontographica Abteilung A 233:137-166 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 113172: authorized by Matthew Clapham, entered by Christina Feng on 23.07.2011

Creative Commons license: CC BY (attribution)