4 Ma Butte (Cretaceous to of Canada)

Where: British Columbia, Canada (49.5° N, 114.5° W: paleocoordinates 50.0° N, 65.8° W)

When: Beaver Mines Formation, Early/Lower Albian to Early/Lower Albian (112.0 - 105.3 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: CC BY (attribution)

Taxonomic list

 Bennettitales -
Pseudocycas sp. Nathorst 1907
 Pinales - Podocarpaceae
 Pinales - Araucariaceae
Pagiophyllum sp. Heer 1881
 Cycadales -
"Nilssonia brogniarti" = Nilsonia
"Nilssonia brogniarti" = Nilsonia cycads
Cladophlebis sp. Brongniart 1849