USNM 41359 (Eocene of the United States)

Also known as PW 9621

Where: Sweetwater County, Wyoming (41.9° N, 108.0° W: paleocoordinates 46.7° N, 91.5° 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• coordinate based on unpublished field data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

Size class: macrofossils

Preservation: adpression

Reposited in the USNM

Collection methods: quarrying, mechanical,

• Great Divide Basin; E end Sourdough Butte; 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 28738: authorized by Peter Wilf, entered by Peter Wilf on 20.02.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Polypodiopsida
  - Polypodiaceae
Allantodiopsis erosa Lesquereux 1878
Morphotype #RR32; see Table A3 of Wilf 2000 (reference 7696) for additional information
  - Blechnaceae
Woodwardia gravida Hickey 1977
Morphotype #FW19-47; see Table A3 of Wilf 2000 (reference 7696) for additional information
Angiospermae
 Zingiberales - Zingiberaceae
Zingiberopsis isonervosa Hickey 1977
Morphotype #RR03; see Table A3 of Wilf 2000 (reference 7696) for additional information
 Gentianales - Apocynaceae
Apocynaceae "RR17" de Jussieu 1789 dogbane
Morphotype #RR17; see Table A3 of Wilf 2000 (reference 7696) for additional information
 Oxalidales - Elaeocarpaceae
aff. Sloanea "RR18" Linnaeus
Morphotype #RR18; see Table A3 of Wilf 2000 (reference 7696) for additional information
 Fagales - Betulaceae
Alnus "RR14" Miller 1754 alder
Morphotype #RR14a; see Table A3 of Wilf 2000 (reference 7696) for additional information
 Malvales - Sterculiaceae
"Dombeya" novimundi Hickey 1977
Morphotype #RR05; see Table A3 of Wilf 2000 (reference 7696) for additional information
  -
"Dicotyledonae "RR13"" = Dicotyledoneae
"Dicotyledonae "RR13"" = Dicotyledoneae
Morphotype #RR13; see Table A3 of Wilf 2000 (reference 7696) for additional information