GSC 94055, Murray Ridge Fm, Murray Ridge, northern Yukon (Jurassic of Canada)

Where: Yukon, Canada (68.0° N, 136.5° W: paleocoordinates 52.3° N, 59.4° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• Raricostatum Zone

Environment/lithology: marine; shale and siltstone

• Table 1 gives broad lithological descriptions of 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 34242: authorized by Arnold Miller, entered by Karen Layou on 22.08.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Echioceratidae