GSC loc. C-157749 - Graham Island (Jurassic of Canada)

Where: British Columbia, Canada (53.4° N, 132.3° W: paleocoordinates 4.5° N, 126.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Phantom Creek Formation, Late/Upper Toarcian (180.1 - 175.6 Ma)

• Yakounensis Zone; Meters indicate distance from base of section

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone

Size class: macrofossils

Preservation: mold/impression

Reposited in the GSC

Collection methods: mechanical,

• G. Jakobs, 1987.

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 53436: authorized by Martin Aberhan, entered by Sabine Nürnberg on 09.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
Bivalvia
 Pectinida - Propeamussiidae
Cephalopoda
 Ammonitida - Hammatoceratidae
"Hammatoceras speciosum" = Geczyceras speciosum, Hammatoceratinae indet.
"Hammatoceras speciosum" = Geczyceras speciosum Janensch 1902 ammonite
Hammatoceratinae indet. Buckman 1887 ammonite