Also known as Field No. 22, Bed 22
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: Lower Member (Lower Shale-Siltstone Formation), Berriasian (145.0 - 139.8 Ma)
• 0.5-1 ft thick conglomerate, 471-486 ft above the base of the section; assigned to the Aucella okensis biozone; classified as "Lower Mbr" of the "lower shale-siltstone division" in Jeletzky (1958); Jeletzky (1958) assigns this unit a Berriasian age. Possibly latest Jurassic.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified, fine-grained, coarse, pebbly, sandy, cherty/siliceous conglomerate
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 55873: authorized by Austin Hendy, entered by Austin Hendy on 07.11.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Aucella okensis" = Buchia okensis
| |
? Pleuromya sp. Meek 1873 clam |