USNM 41264 (Paleogene of the United States)

Also known as PW 9414

Where: Sweetwater County, Wyoming (41.6° N, 108.6° W: paleocoordinates 46.9° N, 90.7° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Fort Union Formation, Clarkforkian (56.2 - 54.9 Ma)

• bed-level stratigraphic resolution

Environment/lithology: wet floodplain; lithified sandstone

Size class: macrofossils

Preservation: adpression

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Washakie Basin; 4 m above Big Multi Quarry; 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 28682: authorized by Peter Wilf, entered by Peter Wilf on 20.02.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

 Coniferales - Cupressaceae
Glyptostrobus europaeus Brongniart 1833 Chinese swamp cypress
Morphotype #FW20; see Table A3 of Wilf 2000 (reference 7696) for additional information
Angiospermae
  -
"Dicotyledonae "FW65"" = Dicotyledoneae
"Dicotyledonae "FW65"" = Dicotyledoneae
Morphotype #FW65; see Table A3 of Wilf 2000 (reference 7696) for additional information
 Oxalidales - Oxalidaceae
Averrhoites affinis Newberry 1868 wood sorrel
Morphotype #RR41; see Table A3 of Wilf 2000 (reference 7696) for additional information
 Asterales - Asteraceae
Calycites "RR71" Massalongo 1856 daisy
Morphotype #RR71; see Table A3 of Wilf 2000 (reference 7696) for additional information
 Zingiberales - Zingiberaceae
Zingiberopsis isonervosa Hickey 1977
Morphotype #RR03; see Table A3 of Wilf 2000 (reference 7696) for additional information