Where: Wyoming (44.5° N, 108.3° W: paleocoordinates 49.8° N, 89.5° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Willwood Formation, Clarkforkian (56.2 - 54.9 Ma)
• bed-level stratigraphic resolution
Environment/lithology: fluvial; lithified mudstone
Size class: macrofossils
Preservation: adpression, original carbon
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 11420: authorized by Scott Wing, entered by John Burns on 15.08.2001
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Angiospermae | |
Viburnum antiquum Newberry 1868 honeysuckle | |
Cornus nebrascensis Schimper 1874 dogwood | |
Nyssa alata tupelo | |
Cercidiphyllum genetrix Newberry 1868 katsura | |
Platanus raynoldsii Newberry 1868 plane tree | |
Persites argutus Hickey 1977 laurel
Sassafras thermale Brown 1962 sassafras | |
Magnolia magnifica Dawson 1882 magnolia | |
Ampelopsis acerifolia Newberry 1868 | |
Corylus insignis Heer 1871 hazel | |
"Carya antiquorum" = Hicoria antiquora
"Carya antiquorum" = Hicoria antiquora Newberry 1868 | |
Magnoliopsida | |
Dicotylophyllum mercerensis Hickey 1977 | |
Metasequoia occidentalis Chaney 1951 dawn redwood |