GSC loc. C-86503 - Tulsequah (Jurassic of Canada)

Where: British Columbia, Canada (58.7° N, 133.1° W)

• Paleocoordinates: 37.1° N, 62.7° W (Wright 2013)

• coordinate stated in text

• small collection-level geographic resolution

When: Takwahoni Formation (Laberge Group), Middle Toarcian (182.0 - 175.6 Ma)

• Planulata Zone; Meters indicate distance from base of section

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified siltstone

• Coarse grained, near-shore Takwahoni Fm.

Size class: macrofossils

Preservation: mold/impression

Reposited in the GSC

Collection methods: mechanical,

Primary reference: G. K. Jakobs. 1997. Toarcian (Early Jurassic) ammonoids from western North America. Geological Survey of Canada, Bulletin 428:137pp. [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 53237: authorized by Martin Aberhan, entered by Sabine Nürnberg on 08.09.2005

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Ostreida - Posidoniidae
Bositra buchi
Bositra buchi Roemer 1836 oyster
shell pavement
Cephalopoda
 Ammonitida - Dactylioceratidae
Dactylioceras sp., Peronoceras sp.
Dactylioceras sp. Hyatt 1867 ammonite
Peronoceras sp. ammonite
 Ammonitida - Hildoceratidae
Cleviceras sp., Pseudolioceras sp.
Cleviceras sp. Howarth 1992 ammonite
 Phylloceratida - Phylloceratidae
Phylloceras sp.
Phylloceras sp. Suess 1865 ammonite