GSC 42535, Graham River (Triassic of Canada)

Where: British Columbia, Canada (56.3° N, 122.7° W: paleocoordinates 24.8° N, 37.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: meginae ammonoid zone, Toad Formation, Longobardian (242.0 - 235.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by E.J.W. Irish in 1960; reposited in the GSC

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 137665: authorized by Matthew Clapham, entered by Matthew Clapham on 18.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ceratitida - Nathorstitidae
Indigirites stolleyi Tozer 1994 ceratite
 Ceratitida - Lobitidae
Lobites pacianus McLearn 1937 ceratite
 Ceratitida - Trachyceratidae
Meginoceras tetsa McLearn 1947 ceratite
Silenticeras bamberi n. sp. Tozer 1994 ceratite
Protrachyceras sikanianum McLearn 1930 ceratite