Where: Nevada (40.0° N, 115.4° W: paleocoordinates 12.9° N, 36.5° W)

• coordinate stated in text

• local area-level geographic resolution

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

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified limestone

Size class: macrofossils

Preservation: replaced with calcite, replaced with silica

Collected by Harold Bissell

Collection methods: chemical, mechanical,

Primary reference: T. V. Mayou. 1969. A new species of Permian ophiuroid from Nevada. Journal of Paleontology 43:936-940 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 97421: authorized by Loic Villier, entered by Loic Villier on 26.07.2010

Creative Commons license: CC BY (attribution)