Cliff west of Fossil Forest, near Chalcedony Creek (Eocene of the United States)

Where: Wyoming (44.0° N, 110.0° W: paleocoordinates 46.8° N, 98.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Sepulcher Formation, Middle Eocene (47.8 - 37.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology:

Size class: macrofossils

Preservation: mold/impression, adpression, original carbon

Collection methods: surface (in situ),

Primary reference: F. H. Knowlton. 1899. Fossil Flora of the Yellowstone National Park. USGS Monograph Series 32(2) [H. Sims/H. Lindon/H. Lindon]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 24196: authorized by Hallie Sims, entered by Heather Lindon on 02.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Phyllites
  -
Phyllites crassifolia Knowlton 1899
Knowlton
Polypodiopsida
 Equisetales - Equisetidae
Equisetum canaliculatum Knowlton 1899 horsetail
Knowlton
 Coniferales - Cupressaceae
Sequoia langsdorfii Heer 1877 coast redwood
(Brgt.) Heer
Pinopsida
 Pinales - Pinaceae
Pinus macrolepis Knowlton 1899 pine
Knowlton
Angiospermae
 Poales - Cyperaceae
Cyperacites sp. Schimper 1870 sedge
Knowlton
 Laurales - Lauraceae
Laurus ? primigenia Unger 1850 laurel
Ung
 Proteales - Platanaceae
Platanus guillelmae Göppert 1852 plane tree
Gopp
 Malpighiales - Salicaceae
Populus balsamoides Göppert 1855 poplar
Gopp
? Populus vivaria Knowlton 1899 poplar
Knowlton