Castle River [Kaskapu Fm] (Cretaceous of Canada)

Where: Alberta, Canada (49.6° N, 114.0° W: paleocoordinates 51.0° N, 71.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kaskapau Formation (Smoky Group), Cenomanian (100.5 - 93.9 Ma)

• STRATIGRAPHIC RELATIONS: Belonging to the Smoky Group. The Kaskapau is conformable with the underlying continental Dunvegan Formation in northeastern British Columbia and most of the Alberta Peace River area, with a transitional lithology except in the vicinity of Watino, Alberta, where the contact is abrupt and the Dunveganoceras Zone seems to be missing. The Kaskapau Formation is conformably overlain by the Bad Heart Formation in the Smoky River area. AGE: Cenomanian, on the basis of ammonoid and foraminiferal biostratigraphy. STRATIGRAPHIC POSITION: From unknown position in local section.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, gray, carbonaceous shale

• ENVIRONMENT: Siliciclastic marine.
• SPECIFIC LITHOLOGY: Predominantly dark grey, fissile, carbonaceous shale. LITHIFICATION: Poorly lithified on the basis of figured specimens.

Size class: macrofossils

Preservation: mold/impression

Reposited in the NMC

Collection methods: surface (in situ),

• COLLECTOR: Multiple collectors. REPOSITORY: National Museum of Canada.

Primary reference: P. S. Warren and C. R. Stelck. 1955. Foraminifera of the Cenomanian Dunveganoceras Zone of the Peace River area of western Canada: Appendix - New Cenomanian ammonites from Alberta. Reserach Council of Alberta Report 70:63-72 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 87583: authorized by Austin Hendy, entered by Austin Hendy on 19.03.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to ammonoids described in text. NOMENCLATURE: Not an authoritative publication, and with relatively antiquated nomenclature but species-resolution identifications.
Cephalopoda
 Ammonitida - Acanthoceratidae
Dunveganoceras clowi n. sp. Warren and Stelck 1955 ammonite