Bed 17, Section 6 - Mount Goodenough Fm, Aklavik Range (Cretaceous of Canada)

Also known as Field No. 19, Bed 17

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

• Paleocoordinates: 74.1° N, 39.8° W (Wright 2013)

• coordinate stated in text

• outcrop-level geographic resolution

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

• 8-9 ft thick siltstone, 287-313 ft from base of section; from Crioceras (Hoplocrioceras) cf. redmoni biozone; classified as "upper member" of "upper shale-siltstone division" in Jeletzky (1958); Jeletzky (1958) and Fowler and Braun (1993) assign this biozone a Barremian age. Considered to be the equivalent of bed 48, section 5.

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified, fine-grained, gray sandstone

• Boreal province; nearshore depositional environment; regressive and prograding conditions.
• Sandstone, medium to dark grey, buff to rusty weathered, fine-grained, hard, massive to blocky in appearance but none the less distinctly cross-bedded and laminated in part.

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 55862: 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.
Bivalvia
 Pectinida - Buchiidae
Cephalopoda
 Belemnitida - Belemnitidae
cf. Acroteuthis sp. Stolley 1911 belemnite
 Ammonitida - Acrioceratidae
"Ancyloceras (Acrioceras) aff. starrkingi" = Toxoceratoides starrkingi
"Ancyloceras (Acrioceras) aff. starrkingi" = Toxoceratoides starrkingi Anderson 1938 ammonite