USNM 41270 CENSUS (Paleogene of the United States)

Also known as PW 956

Where: Sweetwater County, Wyoming (41.6° N, 108.6° W: paleocoordinates 47.0° 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• coordinate based on unpublished field data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, carbonaceous shale

Size class: macrofossils

Preservation: adpression

Reposited in the USNM

Collection methods: bulk, mechanical,

• only dicot leaves censused; see corresponding non-census locality for full species list and additional comments. Insect damage census site for Wilf and Labandeira 1999 and Wilf et al. 2001.Total collection size here includes earlier component (for Wilf 2000) without insect damage tally as well as insect damage tally (Wilf and Labandeira 1999, Wilf et. al 2001). See online supplement of Wilf et al. 2001 for insect damage data for each specimen in the insect damage census.

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 28900: authorized by Peter Wilf, entered by Peter Wilf on 28.02.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Angiospermae
  -
"Dicotyledonae "FW40"" = Dicotyledoneae
"Dicotyledonae "FW40"" = Dicotyledoneae
Morphotype #FW40; see Wilf 2000 (reference 7696) for additional information
Dicotyledoneae
 Parietales - Ternstroemiaceae
Ternstroemites aureavallis Hickey 1977
Morphotype #FW29; see Wilf 2000 (reference 7696) for additional information
Angiospermae
 Vitales - Vitaceae
"Ampelopsis" acerifolia Newberry 1868
Morphotype #FW14; see Wilf 2000 (reference 7696) for additional information
 Fagales - Betulaceae
Corylites "FW01" Gardner 1887 birch
Morphotype #FW01; see Wilf 2000 (reference 7696) for additional information
 Fagales - Juglandaceae
""Carya" antiquorum" = Hicoria antiquora
""Carya" antiquorum" = Hicoria antiquora Newberry 1868
Morphotype #BB03; should be placed in Aesculus antiquorum; see Wilf 2000 (reference 7696) for additional information
 Magnoliales - Magnoliaceae
Magnoliaceae "FW07-22-46" de Jussieu 1789 magnolia
Morphotype #FW07-22-46; see Wilf 2000 (reference 7696) for additional information
 Saxifragales - Cercidiphyllaceae
Cercidiphyllaceae "FW09" Engler 1907
Morphotype #FW09; see Wilf 2000 (reference 7696) for additional information
 Cornales - Cornaceae
Cornus hyperborea Heer 1871 dogwood
Morphotype #FW34; see Wilf 2000 (reference 7696) for additional information
 Laurales - Lauraceae
Persites argutus Hickey 1977 laurel
Morphotype #FW08,WM10; see Wilf 2000 (reference 7696) for additional information
aff. Ocotea "FW03" Aublet 1775 laurel
Morphotype #FW03; see Wilf 2000 (reference 7696) for additional information