Where: British Columbia, Canada (53.0° N, 131.6° W: paleocoordinates 4.1° N, 125.8° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Whiteaves Formation (Maude Group), Middle Toarcian (182.0 - 175.6 Ma)

• Crassicosta Zone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, concretionary, calcareous siltstone

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 57818: authorized by Martin Aberhan, entered by Sabine Nürnberg on 05.01.2006