Also known as PW 9422
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• coordinate based on unpublished field data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 (56.2 - 54.9 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 28660: authorized by Peter Wilf, entered by Peter Wilf on 20.02.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Angiospermae | |
Corylites "FW01" Gardner 1887 birch Morphotype #FW01; see Table A3 of Wilf 2000 (reference 7696) for additional information
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""Carya" antiquorum" = Hicoria antiquora
""Carya" antiquorum" = Hicoria antiquora Newberry 1868 Morphotype #BB03; should be placed in Aesculus antiquorum; see Table A3 of Wilf 2000 (reference 7696) for additional information
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Cercidiphyllaceae "FW09" Engler 1907 Morphotype #FW09; see Table A3 of Wilf 2000 (reference 7696) for additional information
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Glyptostrobus europaeus Brongniart 1833 Chinese swamp cypress Morphotype #FW20; see Table A3 of Wilf 2000 (reference 7696) for additional information
Metasequoia occidentalis Chaney 1951 dawn redwood Morphotype #FW04; see Table A3 of Wilf 2000 (reference 7696) for additional information
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Palaeocarpinus | |
Palaeocarpinus aspinosa Morphotype #BB23; see Table A3 of Wilf 2000 (reference 7696) for additional information
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