Where: Elko County, Nevada (41.3° N, 114.2° W: paleocoordinates 11.8° N, 37.7° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Thaynes Formation, Spathian (251.3 - 247.2 Ma)

• uppermost Thaynes Formation

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified mixed carbonate-siliciclastic sediments

Size class: macrofossils

Collection methods: in some cases, the ophiuroid fossils are in association with crinoids, bryozoans, gastropods, bivalves and brachiopods

Primary reference: R. J. Twitchett, J. M. Feinberg, D. D. O'Connor, W. Alvarez, and L. B. McCollum. 2005. Early Triassic Ophiuroids: their paleoecology, taphonomy and distribution. Palaios 20:213-223 [W. Kiessling/U. Merkel] more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 61812: authorized by Wolfgang Kiessling, entered by Uta Merkel on 03.07.2006