Where: Alberta, Canada (49.0° N, 111.6° W: paleocoordinates 56.5° N, 77.2° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Pawkowki Formation, Early/Lower Campanian (83.5 - 70.6 Ma)
• STRATIGRAPHIC RELATIONS: From the Pawkowki Formation, which overlies the Early Campanian Milk River Formation, is equivalent to the Lea Park Fm, and is overlain by the Judith River Fm (Late Campanian). AGE: Early Campanian on the basis of ammonite (and other groups) biostratigraphy; Baculites obtusus biozone. Early Campanian according to Dawson et el. - Geological Atlas of the Western Canada Sedimentary Basin. STRATIGRAPHIC POSITION: From lower part of formation.
• group of beds-level stratigraphic resolution
Environment/lithology: offshore; poorly lithified siliciclastic sediments
Size class: macrofossils
Preservation: cast, mold/impression, original calcite
Collected by Russell & Landes in 1934-1936; reposited in the GSC
Collection methods: surface (in situ),
• COLLECTOR: L.S. Russell and R. W. Landes. REPOSITORY: Geological Survey of Canada (GSC)
Primary reference: L. S. Russell and R. W. Landes. 1937. Geology of the Southern Alberta Plains. Part II. Paleontology of the marine formations of the Montana Group. Geological Survey of Canada Memoir 221 [A. Hendy/A. Hendy/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 82647: authorized by Austin Hendy, entered by Austin Hendy on 30.07.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Inoceramus barabini clam
Inoceramus sp. Sowerby 1814 clam | |
Anomia sp. Linnaeus 1758 jingle | |
Pteria linguiformis pearl oyster | |
Protocardia subquadrata Evans and Shumard 1857 cockle | |
Cephalopoda | |
Placenticeras intercalare ammonite | |
Baculites haresi Reeside 1927 ammonite
Baculites obtusus Meek 1876 ammonite
Baculites ovatus Say 1820 ammonite
Baculites aquilaensis Reeside 1927 ammonite |