Also known as KJ 9441
Where: Fremont County, Wyoming (42.3° N, 108.1° W: paleocoordinates 48.1° N, 88.4° W)
• coordinate based on unpublished field data
• small collection-level geographic resolution
When: Fort Union Formation, Tiffanian (61.7 - 56.8 Ma)
• bed-level stratigraphic resolution
Environment/lithology: wet floodplain; lithified, gray claystone
Size class: macrofossils
Preservation: adpression
Reposited in the DMNH
Collection methods: quarrying, mechanical,
• Bison Basin collection, IDs revised from Gemmill and Johnson 1997, Palaios by Kirk Johnson and Peter Wilf. Collected by Kirk Johnson and crew.
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 28638: authorized by Peter Wilf, entered by Peter Wilf on 20.02.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
| Polypodiopsida | |
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Equisetum "FW21" Linnaeus 1753 horsetail Morphotype #FW21; see Table A3 of Wilf 2000 (reference 7696) for additional information
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| Angiospermae | |
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Macginitiea gracilis Wolfe and Wehr 1987 Morphotype #FW48; see Table A3 of Wilf 2000 (reference 7696) for additional information
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Celtis aspera Manchester 2014 hackberry Morphotype #BB08; formerly "Viburnum" asperum; 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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Corylites "FW01" Gardner 1887 birch Morphotype #FW01; see Table A3 of Wilf 2000 (reference 7696) for additional information
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Malvales "BB38" Berchtold and Presl 1820 Morphotype #BB38; see Table A3 of Wilf 2000 (reference 7696) for additional information
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"Ampelopsis" acerifolia Newberry 1868 Morphotype #FW14; see Table A3 of Wilf 2000 (reference 7696) for additional information
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"Dicotyledonae "BB50"" = Dicotyledoneae
"Dicotyledonae "BB50"" = Dicotyledoneae Morphotype #BB50; see Table A3 of Wilf 2000 (reference 7696) for additional information
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Metasequoia occidentalis Chaney 1951 dawn redwood Morphotype #BB19; 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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| Gastropoda | |
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Fortuna cf. marsilioides slug Morphotype #BB01; see Table A3 of Wilf 2000 (reference 7696) for additional information
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