K.R. Johnson locality BirdTrackSand (Paleocene of the United States)

Where: Wyoming (45.0° N, 109.0° W: paleocoordinates 51.5° N, 86.3° W)

• small collection-level geographic resolution

When: Fort Union Formation, Torrejonian (63.8 - 60.9 Ma)

• bed-level stratigraphic resolution

Environment/lithology: sandstone

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 11332: authorized by Scott Wing, entered by Summer Ostrowski on 13.08.2001, edited by John Burns

Creative Commons license: CC BY (attribution)

Taxonomic list

Angiospermae
 Rosales - Rhamnaceae
Rhamnus cleburni Lesquereux 1872 buckthorn
 Saxifragales - Cercidiphyllaceae
Cercidiphyllum genetrix Newberry 1868 katsura
Polypodiopsida
 Equisetales - Equisetidae
Equisetum "sp. 1" Linnaeus 1753 horsetail