ammonites
GSC loc. C-90810 - Spatsizi River (Jurassic of Canada)

Where: British Columbia, Canada (57.5° N, 128.9° W: paleocoordinates 36.3° N, 70.7° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Wolf Den Member (Spatsizi Formation), Middle Toarcian (182.0 - 175.6 Ma)

• Crassicosta Zone

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified siliciclastic sediments

• The lithology and fauna of the lower Wolf Den Fm. are indicative of a deep water, possibly anaerobic, environment of deposition corresponding to composite assemblage depth zone D of Taylor (1982).

Size class: macrofossils

Reposited in the GSC

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 55790: authorized by Martin Aberhan, entered by Sabine Nürnberg on 05.11.2005