GSC 85926, Murray Ridge Fm, Bug Creek, Northwest Territories (Jurassic of Canada)

Where: Northwest Territories, Canada (68.1° N, 135.4° W: paleocoordinates 52.2° N, 58.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Murray Ridge Formation (Bug Creek Group), Sinemurian (199.3 - 190.8 Ma)

• sample from about 68 m above base of the section

Environment/lithology: marine; shale and siltstone

• Table 1 gives lithological descriptions for formations within the study area. The Murray Ridge Fm is predominantly shale and siltstone

Size class: macrofossils

Reposited in the GSC

Collection methods: surface (in situ),

Primary reference: T.P. Poulton. 1991. Hettangian through Aalenian (Jurassic) guide fossils and biostratigraphy, Northern Yukon and adjacent Northwest Territories. Geological Survey of Canada Bulletin (410)1-95 [A. Miller/K. Layou/K. Layou]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 34191: authorized by Arnold Miller, entered by Karen Layou on 21.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Echioceratidae
Echioceras aklavikense