GSC loc. C-103315 - Spatsizi River (Jurassic of Canada)

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

• coordinate estimated from map

• small collection-level geographic resolution

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

• 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

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 55557: authorized by Martin Aberhan, entered by Sabine Nürnberg on 01.11.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Eoderoceratidae
Metaderoceras talkeetnaense, Dubariceras silviesi, Dubariceras freboldi
Metaderoceras talkeetnaense Thomson and Smith 1992 ammonite
Dubariceras silviesi Hertlein 1925 ammonite
Dubariceras freboldi Dommergues et al. 1984 ammonite