GSC loc. C-90835 - Spatsizi River (Jurassic of Canada)

Where: British Columbia, Canada (57.5° N, 128.9° W: paleocoordinates 33.0° N, 71.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Joan Member (Spatsizi Formation), Early/Lower Pliensbachian (189.6 - 183.0 Ma)

• Freboldi Zone

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified siltstone

• The Joan Fm. contains a diverse bivalve fauna that indicates a relatively shallow to moderately deep water environment of deposition, corresponding to composite assemblage depth zones B and C of Taylor (1982).

Size class: macrofossils

Preservation: mold/impression

Reposited in the GSC

Collection methods: mechanical,

Primary reference: R. C. Thomson and P. L. Smith. 1992. Pliensbachian (Lower Jurassic) biostratigraphy and ammonite fauna of the Spatsizi area, north-central British Columbia. Geological Survey of Canada Bulletin 437:1-87 [M. Aberhan/S. Nurnberg/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 53553: authorized by Martin Aberhan, entered by Sabine Nürnberg on 12.09.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Eoderoceratidae
Metaderoceras sp., Dubariceras freboldi
Metaderoceras sp. Spath 1925 ammonite
unpublished
Dubariceras freboldi Dommergues et al. 1984 ammonite
 Ammonitida - Dactylioceratidae
"Aveyroniceras sp." = Reynesoceras
"Aveyroniceras sp." = Reynesoceras Spath 1936 ammonite
sp. B
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
unpublished
Bivalvia
 Trigoniida - Myophorelloidae
Vaugonia sp.
Vaugonia sp. Crickmay 1930 clam
unpublished
 Pectinida - Neitheoidae
Weyla (Weyla) alata
Weyla (Weyla) alata von Buch 1838 scallop
 Pectinida - Entoliidae
Entolium (Entolium) corneolum
Entolium (Entolium) corneolum Young and Bird 1828 scallop