Singh (1983) ISR No. 1 well-1468ft (Cretaceous of Canada)

Also known as Singh (1983) Imperial Spirit River No. 1 well, depth 1468 feet

Where: Alberta, Canada (55.8° N, 118.9° W: paleocoordinates 57.8° N, 71.9° W)

• coordinate stated in text

When: Beattonoceras, Acanthoceras, and Inoceramus dunveganensis zone, Dunvegan Formation, Middle Cenomanian (99.6 - 93.5 Ma)

• This formation is in the Beattonoceras, Acanthoceras, and Inoceramus dunveganensis molluscan biozones.

Environment/lithology: fluvial-deltaic; shale

• The Dunvegan Formation consists of medium- to coarse-grained, carbonaceous, cross-bedded, deltaic sandstones, with greyish green, non-marine, carbonaceous shales. There are also some brackish to marine phases in the middle of the succession, represented by dark grey shales, siltstones, and oyster beds. A few thin coaly beds are developed locally. Individual samples not specifically described.

Size class: microfossils

Preservation: original sporopollenin

Collection methods: core,

Primary reference: C. Singh. 1983. Cenomanian microfloras of the Peace River area, northwestern Alberta. Bulletin of the Alberta Research Council 44:1-322 [R. Lupia/B. Wilborn/B. Wilborn]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 31933: authorized by Rick Lupia, entered by Brooke Wilborn on 29.05.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Oyster beds are reported, but not included in taxonomic list.
Show authors, comments, and common names
Polypodiopsida
 Salviniales - Polypodiidae
Ariadnaesporites cristatus