Bed 23, Section 5 - Mount Goodenough Fm, Aklavik Range (Cretaceous of Canada)

Also known as Field No. 16, Bed 23

Where: Northwest Territories, Canada (67.9° N, 135.4° W: paleocoordinates 70.6° N, 65.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Lower Member (Mount Goodenough Formation), Barremian (129.4 - 125.0 Ma)

• 12-15 ft of sandstone, 426-463 ft above base of section; from Oxyteuthis cf. jasikowi biozone; classified as "lower member" of "upper shale-siltstone division" in Jeletzky (1958); reassigned to "Mount Goodenough Formation" following Fowler and Braun (1993). Both Jeletzky (1958) and Fowler and Braun (1993) assign this biozone to a Barremian age.

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, fine-grained, black, gray sandstone

• Boreal faunal province; inner-middle shelf depositional environment; accumulated during interval of regression and progradation
• Sandstone, dull grey to ash grey, thin-bedded to laminated, fine-grained, shale-like, hard and resistent.

Size class: macrofossils

Preservation: concretion

Reposited in the GSC

Collection methods: surface (float),

• Collected by Jeletzky; presumably reposited in GSC collections .

Primary reference: J. A. Jeletzky. 1958. Uppermost Jurassic and Cretaceous rocks of Aklavik Range, Northeastern Richardson Mountains, Northwest Territories. Geological Survey of Canada, Paper 58(2):1-84 [A. Miller/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 55840: authorized by Austin Hendy, entered by Austin Hendy on 06.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Collection appears not to be exhaustive.
Show authors, comments, and common names
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium sp.
Dentalium sp. Linnaeus 1758 tusk shell
Bivalvia
 Myalinida - Inoceramidae
Inoceramus sp.
Inoceramus sp. Sowerby 1814 clam