Also known as PW 964

Where: Sweetwater County, Wyoming (41.2° N, 108.9° W: paleocoordinates 46.6° N, 91.2° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Fort Union Formation, Clarkforkian (56.8 - 55.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: wet floodplain; lithified, carbonaceous siltstone

Size class: macrofossils

Preservation: adpression

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Washakie Basin; same level loc. 41284; NMNH Accession #OR420051

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 28671: authorized by Peter Wilf, entered by Peter Wilf on 20.02.2003