Where: Alberta, Canada (52.8° N, 116.8° W: paleocoordinates 56.6° N, 75.1° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Inoceramus costellatus inoceramid zone, Opabin Member (Blackstone Formation), Middle Turonian (93.5 - 89.3 Ma)
• STRATIGRAPHIC RELATIONS: From the Opabin Mbr of the Blackstone Fm, which overlies the Haven Mbr of the Blackstone Fm and is overlain by the Cardium Fm. AGE: Late Turonian, on the basis of ammonoid and bivalve biostratigraphy; Prionocyclus woollgari/Inoceramud costellatus zone. STRATIGRAPHIC POSITION: From unit 8 within section 4-23.
• bed-level stratigraphic resolution
Environment/lithology: marine; concretionary shale
Size class: macrofossils
Preservation: mold/impression
Reposited in the GSC
Collection methods: surface (in situ),
• COLLECTOR: Stott, c. 1960's. REPOSITORY: Geological Survey of Canada.
Primary reference: D. F. Stott. 1963. The Cretaceous Alberta Group and equivalent rocks, Rocky Mountain foothills, Alberta. Geological Survey of Canada Memoir 317:1-306 [A. Hendy/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 89211: authorized by Austin Hendy, entered by Austin Hendy on 10.05.2009
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
"Prionocyclus (Collignoniceras) sp." = Collignoniceras
"Prionocyclus (Collignoniceras) sp." = Collignoniceras Breistroffer 1947 ammonite | |
Scaphites patulus Cobban 1951 ammonite | |
Bivalvia | |
Inoceramus lamarcki, "Inoceramus aff. cordiformis" = Cordiceramus cordiformis, Inoceramus fragilis, Inoceramus costellatus
"Inoceramus aff. cordiformis" = Cordiceramus cordiformis Sowerby 1823 clam
Inoceramus fragilis Hall and Meek 1856 clam
Inoceramus costellatus Woods 1904 clam | |
Pteria sp. Scopoli 1777 pearl oyster |