Ridge east of south end of Spruce Lake (Triassic of Canada)

Where: British Columbia, Canada (51.0° N, 123.0° W: paleocoordinates 21.3° N, 65.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Cassianella beds Member (Tyaughton Formation), Rhaetian (208.5 - 201.3 Ma)

• Cassianella beds contains conodont Epigondolella mosheri and is the type for the early Rhaetian Cochloceras amoenum zone.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by C.E. Cairnes, C.H. Crickmay, V. Dolmage; reposited in the GSC

Primary reference: F. H. McLearn. 1942. The neo-Triassic Cassianella fauna of Tyaughton Creek valley, B.C. The Canadian Field-Naturalist 56:99-103 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135948: authorized by Matthew Clapham, entered by Matthew Clapham on 12.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ostreida - Cassianellidae
Cassianella lingulata Gabb 1870 oyster
var. crickmayi
 Trigoniida - Trigoniidae
"Myophoria columbiana n. sp." = Maoritrigonia columbiana
"Myophoria columbiana n. sp." = Maoritrigonia columbiana McLearn 1942 clam