GSC 10726, Chischa River (Triassic of Canada)

Where: British Columbia, Canada (58.6° N, 123.9° W: paleocoordinates 28.2° N, 34.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: deleeni ammonoid zone, Toad Formation, Illyrian (247.2 - 242.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by W.I. Wright in 1944; reposited in the GSC

Primary reference: F. H. McLearn. 1969. Middle Triassic (Anisian) ammonoids from northeastern British Columbia and Ellesmere Island. Geological Survey of Canada Bulletin 170:1-90 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 137077: authorized by Matthew Clapham, entered by Matthew Clapham on 10.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ceratitida - Beyrichitidae
"Gymnotoceras liardense n. sp." = Eogymnotoceras liardense
"Gymnotoceras liardense n. sp." = Eogymnotoceras liardense McLearn 1946 ceratite
 Ceratitida - Longobarditidae
Intornites canadensis McLearn 1946 ceratite