Singh (1983) Sample B-5 (Cretaceous of Canada)

Also known as Singh (1983) Sample B-5

Where: Alberta, Canada (55.9° N, 119.9° W: paleocoordinates 58.2° N, 72.8° 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.

• bed-level stratigraphic resolution

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: surface (in situ),

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 31734: authorized by Rick Lupia, entered by Brooke Wilborn on 23.05.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Oyster beds are reported, but not included in taxonomic list.
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Polypodiopsida
 Salviniales - Polypodiidae
Ariadnaesporites caperatus
Pteridopsida
 Marsileales -
Arcellites disciformis
Spermatites
  -
Spermatites ellipticus
Lycopodiopsida
 Isoetales -
Minerisporites dissimilis, Minerisporites pterotus