GSC loc. C-87139 - Graham Island (Jurassic of Canada)

Where: British Columbia, Canada (53.4° N, 132.3° W: paleocoordinates 4.2° N, 126.4° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• Crassicosta Zone; Meters indicate distance from base of section

• 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 59526: authorized by Martin Aberhan, entered by Sabine N├╝rnberg on 04.04.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ammonitida - Phymatoceratidae
 Ammonitida - Dactylioceratidae
 Nautilida - Cenoceratidae
"Cenoceras cf. intermedius" = Cenoceras intermedium
"Cenoceras cf. intermedius" = Cenoceras intermedium Sowerby 1816 nautiloid