GSC 42384, Alaska Highway (Triassic of Canada)

Where: British Columbia, Canada (58.8° N, 125.3° W: paleocoordinates 33.2° N, 46.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: welleri ammonoid zone, Ludington Formation, Tuvalian (232.0 - 221.5 Ma)

• subzone 1

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by E.T. Tozer in 1960; 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 137507: authorized by Matthew Clapham, entered by Matthew Clapham on 17.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ceratitida - Tropitidae
Discotropites smithi Kutassy 1933 ceratite
Homerites semiglobosus Hauer 1855 ceratite
 Ceratitida - Juvavitidae
Projuvavites brockensis Smith 1927 ceratite