Where: Wyoming (42.1° N, 110.5° W: paleocoordinates 43.1° N, 71.4° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Aspen Shale Formation, Cenomanian (100.5 - 93.9 Ma)
• "flora occur in deposits which directily underlie the Frontier Formation of accepted Colorado age"
•JA: the Aspen Shale is late Albian and immediately underlies the terrestrial Cenomanian and Turoninan Frontier Formation but is entirely marine and has a disputed upper boundary (Nichols and Jacobson 1982), so the flora is presumably from low in the Frontier Formation and therefore Cenomanian contra Brown
• formation-level stratigraphic resolution
Environment/lithology: fluvial-lacustrine; lithified, gray mudstone
Size class: macrofossils
Preservation: adpression, original carbon
Collection methods: bulk,
Primary reference: R. Brown. 1933. Fossil plants from the Aspen Shale of southwestern Wyoming. Proceedings of the United States National Museum 82(12):1-10 [B. Tiffney/J. Fosdick/J. Fosdick]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 34972: authorized by Bruce Tiffney, entered by Julia Fosdick on 21.10.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Polypodiopsida | |
Microtaenia paucifolia Hall 1845 | |
Cladophlebis readi n. sp.
Cladophlebis readi n. sp. | |
"Asplenium occidentale" = Osmunda occidentale
"Asplenium occidentale" = Osmunda occidentale Knowlton 1917 | |
Anemia fremonti Knowlton 1917 | |
Angiospermae | |
Laurus aspensis n. sp., Sassafras bradleyi n. sp.
Laurus aspensis n. sp. laurel
Sassafras bradleyi n. sp. sassafras | |
Liquidambar fontanella n. sp.
Liquidambar fontanella n. sp. sweetgum | |
Dryandroides lanceolata Knowlton 1917 | |
Nelumbo weymouthi n. sp.
| |
Prunus aspensis n. sp.
Prunus aspensis n. sp. plum | |
? Populus aspensis n. sp.
? Populus aspensis n. sp. poplar | |
? Staphylea fremonti Knowlton 1917 bladdernut | |
Sapindopsis schultzi n. sp.
Sapindopsis schultzi n. sp. soapberry | |
Sparganium aspensis n. sp.
|