Where: Nevada (39.2° N, 114.9° W: paleocoordinates 11.9° N, 36.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Arcturus Formation, Artinskian (290.1 - 279.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Preservation: replaced with silica

Collected by R.L. Langenheim, E. Wilson in 1957

Primary reference: T. E. Yancey. 1969. A molluscan faunal assemblages from the Arcturus Formation, Nevada. PaleoBios 8:1-20 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 120946: authorized by Matthew Clapham, entered by Matthew Clapham on 24.11.2011

Creative Commons license: CC BY (attribution)