Also known as Black Hills
Where: Crook County, Wyoming (44.7° N, 104.2° W: paleocoordinates 43.4° N, 53.0° W)
• coordinate based on nearby landmark
When: Cretaceous Formation, Early/Lower Cretaceous (145.0 - 100.5 Ma)
• Due to its late 19th century date of publication, the "Cretaceous Formation" is the highest stratigraphic resolution for this collection.
• formation-level stratigraphic resolution
Environment/lithology: fluvial-lacustrine
Size class: macrofossils
Preservation: mold/impression, adpression, original carbon
Collection methods: bulk,
Primary reference: L.F. Ward. 1899. The Cretaceous formation of the Black Hills as as indicated by the fossil plants. Cretaceous Formation of the Black Hills [B. Tiffney/J. Fosdick/B. Tiffney]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 34841: authorized by Bruce Tiffney, entered by Julia Fosdick on 06.10.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Angiospermae | |
"Ulmiphyllum densinerve n. sp." = Ulmophyllum
"Ulmiphyllum densinerve n. sp." = Ulmophyllum elm | |
Pteropsida | |
Pecopteris Geyleriana Brongniart 1822 | |
Polypodiopsida | |
Matonidium Althaausii Schenk 1871
Weichselia reticulata Stokes and Webb 1824 |