GSC 83875, northwest of Hook Lake (Triassic of Canada)

Where: British Columbia, Canada (54.9° N, 121.4° W: paleocoordinates 24.4° N, 35.6° W)

• coordinate stated in text

• small collection-level geographic resolution

When: chischa ammonoid zone, Llama Member (Sulphur Mountain Formation), Illyrian (247.2 - 242.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Collected by E.T. Tozer in 1969; reposited in the GSC

Collection methods: surface (float)

Primary reference: E. T. Tozer. 1994. Canadian Triassic Ammonoid Faunas. Geological Survey of Canada Bulletin 467:1-663 [A. McGowan/A. McGowan/A. McGowan]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 139558: authorized by Matthew Clapham, entered by Matthew Clapham on 13.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ceratitida - Proteusitidae
Tozerites polygyratus Smith 1914 ceratite
 Ceratitida - Ptychitidae
Ptychites hamatus n. sp. Tozer 1994 ceratite
 Ceratitida - Parapopanoceratidae
Parapopanoceras malmgreni Lindstroem 1865 ceratite
 Ceratitida - Beyrichitidae
Frechites chischa Tozer 1967 ceratite
Pleurofrechites subsidens Tozer 1994 ceratite
 Ceratitida - Longobarditidae
Longobardites murrayensis n. sp. Tozer 1994 ceratite