Whitehorse Trough, Atlin Lake, GSC Locality C-203301 (Jurassic of Canada)

Also known as Field No. GGAJ-92-123-F

Where: British Columbia, Canada (59.2° N, 133.8° W: paleocoordinates 34.0° N, 74.5° W)

• coordinate stated in text

When: Imlayi ammonoid zone, Inklin Formation (Laberge Group), Early/Lower Pliensbachian (189.6 - 183.0 Ma)

Environment/lithology: submarine fan; poorly lithified, coarse-grained, sandy sandstone and volcaniclastic

Size class: macrofossils

Primary reference: G. G. Johannson. 1994. Provenance Constraints on Early Jurassic Evolution of the Northern Stikinian Arc: Laberge Group, Whitehorse Trough, Northwestern British Columbia. [J. Pálfy/E. Kovács]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 198451: authorized by Adam Kocsis, entered by Danijela Dimitrijevic on 16.12.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Eoderoceratidae
Metaderoceras sp., "Metaderoceras evolutum" = Metaderoceras gemmellaroi evolutum
Metaderoceras sp. Spath 1925 ammonite
"Metaderoceras evolutum" = Metaderoceras gemmellaroi evolutum Fucini 1924 ammonite
 Ammonitida - Coeloceratidae
Miltoceras sp.
Miltoceras sp. Wiedenmayer 1980 ammonite
 Ammonitida - Polymorphitidae
Gemmellaroceras sp., ? Polymorphites sp.
Gemmellaroceras sp. Hyatt 1900 ammonite
original 'Gemmelloceras sp.'
? Polymorphites sp. Haug 1887 ammonite