GSC 25096, Pembina River [Chungo Mbr, Wapiabi Fm] (Cretaceous of Canada)

Where: Alberta, Canada (54.7° N, 114.3° W: paleocoordinates 62.4° N, 76.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Chungo Member (Wapiabi Formation), Early/Lower Campanian (83.5 - 70.6 Ma)

• STRATIGRAPHIC RELATIONS: From the Chungo Mbr of the Wapiabi Fm, which overlies the Hanso Mbr and is overlain by the Nomad Mbr, both of the Wapiabi Fm. AGE: Early Campanian, on the basis of ammonoid and bivalve biostratigraphy; Scaphites hippocrepis Zone zone. STRATIGRAPHIC POSITION: From unit 18 of section 4-37.

• bed-level stratigraphic resolution

Environment/lithology: marine; siltstone and sandstone

• ENVIRONMENT: Siliciclastic marine.
• SPECIFIC LITHOLOGY: Siltstone or shale. LITHIFICATION: Not described in text.

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 89216: authorized by Austin Hendy, entered by Austin Hendy on 10.05.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for marine invertebrates. NOMENCLATURE: An authoritative publication, and with relatively antiquated nomenclature but species-resolution identifications.
Cephalopoda
 Ammonitida - Baculitidae
Baculites ovatus Say 1820 ammonite
Bivalvia
 Nuculida - Nuculidae
Nucula sp. Lamarck 1799 nut clam
 Cardiida - Cardiidae
? Cardium sp. Linnaeus 1758 cockle