Also known as Field No. 16, Basal sandy siltstone

Where: Northwest Territories, Canada (67.9° N, 135.4° W: paleocoordinates 68.4° 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)

• 100 ft thick siltstone below bed 1 near base of section; from Polyptychites (Tollia) cf. tolli biozone; classified as "upper member" of "lower shale-siltstone division" in Jeletzky (1958); Jeletzky (1958) assigns this biozone a Berriasian age.

• bed-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, sandy siltstone and sandy shale

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 55847: authorized by Austin Hendy, entered by Austin Hendy on 06.11.2005

Creative Commons license: CC BY (attribution)