Where: Nevada (40.5° N, 118.1° W: paleocoordinates 11.1° N, 41.7° W)

• coordinate estimated from map

• 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 114116: authorized by Matthew Clapham, entered by Christina Feng on 10.08.2011

Creative Commons license: CC BY (attribution)