Bed 28, Section1 - Lower shale-siltstone division, Aklavik Range (Cretaceous of Canada)

Also known as Field No. 22, Bed 28

Where: Northwest Territories, Canada (68.0° N, 135.5° W: paleocoordinates 68.5° N, 66.6° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Upper Member (Lower Shale-Siltstone Formation), Berriasian (145.0 - 139.8 Ma)

• 10-15 ft thick shale, an unspecified height above the base of the section; assigned to the Polyptchites (Tollia) cf. tolli biozone; classified as "Upper Mbr" of the "lower shale-siltstone division" in Jeletzky (1958); Jeletzky (1958) assigns this unit a Berriasian age.

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, brown, sandy shale

• No environmental data reported.
• Shale, grey, brownish rusty weathering, sandy; strongly sheared, jointed, and somewhat contorted

Size class: macrofossils

Reposited in the GSC

Collection methods: quarrying,

• 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 55871: authorized by Austin Hendy, entered by Austin Hendy on 07.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Collection appears not to be exhaustive.
Bivalvia
 Pectinida - Buchiidae
"Aucella volgensis" = Buchia volgensis
"Aucella volgensis" = Buchia volgensis Lahusen 1888 scallop