USNM 41342 CENSUS: Wasatchian, Wyoming

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
13 specimens
Morphotype #RR19; see Wilf 2000 (reference 7696) for additional information
Angiospermae - Magnoliales
11 specimens
Morphotype #RR12; see Wilf 2000 (reference 7696) for additional information
Angiospermae - Santalales - Schoepfiaceae
1 specimen
Morphotype #RR44; see Wilf 2000 (reference 7696) for additional information
Angiospermae - Gentianales - Apocynaceae
37 specimens
Morphotype #RR17; see Wilf 2000 (reference 7696) for additional information
Angiospermae - Oxalidales - Elaeocarpaceae
123 specimens
Morphotype #RR18; see Wilf 2000 (reference 7696) for additional information
Angiospermae - Fagales - Juglandaceae
19 specimens
Morphotype #RR01; see Wilf 2000 (reference 7696) for additional information
Angiospermae - Fagales - Betulaceae
368 specimens
Morphotype #RR14; see Wilf 2000 (reference 7696) for additional information
Angiospermae - Rosales - Rhamnaceae
20 specimens
Morphotype #RR15; see Wilf 2000 (reference 7696) for additional information
Angiospermae - Sapindales - Sapindaceae
4 specimens
Morphotype #RR59; see Wilf 2000 (reference 7696) for additional information
Angiospermae - Malvales - Sterculiaceae
98 specimens
Morphotype #RR05; see Wilf 2000 (reference 7696) for additional information
Angiospermae
15 specimens
Morphotype #RR37; see Wilf 2000 (reference 7696) for additional information
17 specimens
Morphotype #RR20; see Wilf 2000 (reference 7696) for additional information
13 specimens
Morphotype #RR57; see Wilf 2000 (reference 7696) for additional information
2 specimens
Morphotype #RR31; see Wilf 2000 (reference 7696) for additional information
2 specimens
Morphotype #RR38; see Wilf 2000 (reference 7696) for additional information
see common names

Geography
Country:United States State/province:Wyoming County:Sweetwater
Coordinates: 41.9° North, 108.0° West (view map)
Paleocoordinates:49.7° North, 81.0° West (Wright 2013)
Basis of coordinate:unpublished field data
Geographic resolution:small collection
Time
Period: Paleogene Epoch: Eocene
Stage: Ypresian 10 m.y. bin: Cenozoic 2
*Period:Tertiary *Epoch:Early/Lower Eocene
*Local age/stage:Wasatchian
Key time interval: Wasatchian
Age range of interval: 54.9 - 50.5 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Wasatch Member:Ramsey Ranch
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: lithified carbonaceous siltstone
Includes fossils?Y
Environment:wet floodplain Tectonic setting:intermontane basin
Taphonomy
Modes of preservation:adpression
Size of fossils:macrofossils
Spatial orientation:random
Feeding/predation traces:external foliage feeding,arthropod mining,arthropod galling
Temporal resolution:snapshot
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:bulk,mechanical,field collection
Collection size:743 specimens
Reason for describing collection:general faunal/floral analysis
Museum repositories:USNM
Collection method comments: 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.
Metadata
Also known as:PW 9529
Database number:28911
Authorizer:P. Wilf Enterer:P. Wilf
Modifier:P. Wilf Research group:paleobotany
Created:2003-02-28 10:22:43 Last modified:2025-02-22 15:12:02
Access level:the public Released:2003-02-28 10:22:43
Creative Commons license:CC0
Reference information

Primary reference:
7696. 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]

Secondary references:

8331 P. Wilf and C. C. Labandeira. 1999. Response of plant-insect associations to Paleocene-Eocene warming. Science 284(5423):2153-2156 [P. Wilf/P. Wilf/P. Wilf]
8332 P. Wilf, C. C. Labandeira, K. R. Johnson, P. D. Coley, and A. D. Cutter. 2001. Insect herbivory, plant defense, and early Cenozoic climate change. Proceedings of the National Academy of Sciences 98(11):6221-6226 [P. Wilf/P. Wilf/P. Wilf]