Also known as USNM locality 37623
Where: Wyoming (44.4° N, 108.1° W: paleocoordinates 49.3° N, 91.2° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Willwood Formation, Graybullian (55.8 - 50.3 Ma)
• bed-level stratigraphic resolution
Environment/lithology: wet floodplain; lithified, carbonaceous shale
Size class: macrofossils
Preservation: adpression, original carbon
Reposited in the USNM
Collection methods: quarrying,
Primary reference: S. L. Wing, J. Alroy, and L. J. Hickey. 1995. Plant and mammal diversity in the Paleocene to Early Eocene of the Bighorn Basin. Palaeogeography, Palaeoclimatology, Palaeoecology 115:117-155 [S. Wing/H. Sims/M. Uhen]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 11456: authorized by Scott Wing, entered by John Burns on 16.08.2001
Creative Commons license: CC BY (attribution)
Taxonomic list
Angiospermae | |
Alnus "sp.1" Miller 1754 alder | |
Metasequoia occidentalis Chaney 1951 dawn redwood | |
Polypodiopsida | |
Equisetum "sp.1" Linnaeus 1753 horsetail | |
Salvinia preauriculata Berry 1925 watermoss |