GSC loc. C-158027 - Graham Island (Jurassic to 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), Early/Lower Toarcian to Early/Lower Toarcian (183.0 - 175.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siltstone

Size class: macrofossils

Preservation: cast, 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 53094: authorized by Martin Aberhan, entered by Sabine Nürnberg on 06.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Hildoceratidae
Hildaites murleyi Buckman 1841 ammonite
Harpoceratinae indet. Neumayr 1875 ammonite
Harpoceras cf. subplanatum Oppel 1856 ammonite
Cleviceras sp. Howarth 1992 ammonite
"Cleviceras cf. exaratum" = Eleganticeras exaratum Young and Bird 1828 ammonite
 Phylloceratida - Phylloceratidae
Phylloceras sp. Suess 1865 ammonite
Bivalvia
 Nuculida - Nuculidae
Palaeonucula sp. Quenstedt 1930 nut clam
sp. B