Where: Nevada (40.4° N, 117.5° W: paleocoordinates 10.8° N, 41.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Shoshonensis zone, Pelsonian (247.2 - 242.0 Ma)

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Primary reference: H. Bucher. 1992. Ammonoids of the Shoshonensis Zone (Middle Anisian, Middle Triassic) from northwestern Nevada (USA). Jahrbuch der Geologischen Bundesanstalt 135:425-465 [M. Clapham/C. Feng/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 113683: authorized by Matthew Clapham, entered by Christina Feng on 04.08.2011

Creative Commons license: CC BY (attribution)