Also known as PW9549 CENSUS

Where: Sweetwater County, Wyoming (41.9° N, 109.0° W: paleocoordinates 46.8° N, 92.5° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Ramsey Ranch Member (Wasatch Formation), Wasatchian (55.8 - 50.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: wet floodplain; lithified, carbonaceous siltstone and lithified, carbonaceous shale

Size class: macrofossils

Preservation: adpression

Reposited in the USNM

Collection methods: bulk, mechanical,

• Great Divide Basin, Sourdough flora. Only dicot leaves censused. See USNM 41352 corresponding non-census locality for presence-absence data for all species. Collected 8/1/95, 7/29/96, and July 1998. For voucher specimens, Smithsonian NMNH accession number OR420051. Occurrence of Cephaloleichnites strongi (hispine beetle damage on Zingiberopsis, see Wilf et al. 2000). Insect damage census site for Wilf and Labandeira 1999 and Wilf et al. 2001.Total collection size here includes earlier component (for Wilf 2000) without insect damage tally as well as insect damage tally (Wilf and Labandeira 1999, Wilf et. al 2001). See online supplement of Wilf et al. 2001 for insect damage data for each specimen in the insect damage census.

Primary reference: P. Wilf. 2000. Late Paleocene-early Eocene climate changes in southwestern Wyoming: Paleobotanical analysis. Geological Society America Bulletin 112(2):292-307 [P. Wilf/P. Wilf/P. Wilf]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 28135: authorized by Peter Wilf, entered by Peter Wilf on 24.01.2003

Creative Commons license: CC BY (attribution)