Cumshewa Inlet (CT1-Ghost Creek Fm), Queen Charlotte Islands, B.C. (Jurassic of Canada)

Where: British Columbia, Canada (53.0° N, 131.9° W: paleocoordinates 8.5° N, 71.2° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Ghost Creek Formation (Maude Group), Imlayi (189.6 - 186.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; siltstone and mudstone

• for entire formation: dark pyritic shales, occasional sandstones and nodular limestons are present and the top of the formation becomes locally glauconitic in the north. oil stains and bitumen are pervasive (sample taken from siltstone/mudstone horizon)

Size class: macrofossils

Collection methods: surface (float),

Primary reference: P. L. Smith and H. W. Tipper. 1996. Pliensbachian (Lower Jurassic) ammonites of the Queen Charlotte Islands, British Columbia. Bulletins of American Paleontology 108(348):1-122 [A. Miller/K. Layou/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 32827: authorized by Arnold Miller, entered by Karen Layou on 15.07.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Coeloceratidae
Miltoceras aff. sellae
Miltoceras aff. sellae Gemmellaro 1884 ammonite
 Ammonitida - Polymorphitidae
Tropidoceras spp.
Tropidoceras spp. Hyatt 1867 ammonite