4 Ma Butte (Cretaceous to of Canada)
Where: British Columbia, Canada (49.5° N, 114.5° W)
• Paleocoordinates: 57.5° N, 66.1° W (Wright 2013)
When: Beaver Mines Formation, Early/Lower Albian to Early/Lower Albian (113.2 - 106.3 Ma)
Environment/lithology: terrestrial; silty shale
Size class: microfossils
Preservation: adpression
Primary reference: G. B. Mellon. 1967. Stratigraphy and Petrology of the Lower Cretaceous Blairmore and Mannville Groups, Alberta Foothills and Plains. Research Council of Alberta 21:1-270 [S. Wing/N. Jud]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 136793: authorized by Scott Wing, entered by Nathan Jud on 04.12.2012
Creative Commons license: CC0 (CC0)
Taxonomic list
Show authors, comments, and common names
| Polypodiopsida | |
|
Cladophlebis sp. Brongniart 1849 | |
| Equisetopsida | |
|
Pagiophyllum sp. Heer 1881 | |
| Cycadopsida | |
"Nilssonia brogniarti" = Nilsonia
"Nilssonia brogniarti" = Nilsonia cycads | |
|
Cycadella sp. Ward 1900 | |
|
Pseudocycas sp. Nathorst 1907 | |
|
Elatocladus brevifolia podocarp | |