Where: British Columbia, Canada (53.2° N, 132.0° W: paleocoordinates 25.3° N, 78.3° W)

• coordinate based on nearby landmark

When: Yakoun Formation, Early/Lower Callovian to Early/Lower Callovian (164.7 - 161.2 Ma)

• Lower or Middle Callovian

Environment/lithology: marine; lithology not reported

Size classes: macrofossils, mesofossils

Collected by F. H. McLearn in 1921

Primary reference: T. P. Poulton. 1979. Jurassic Trigoniid Bivalves from Canada and Western United States of America. Geological Survey of Canada Bulletin 282 [G. Stanley/H. Shepherd/H. Shepherd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127122: authorized by George Stanley, entered by Hannah Shepherd on 26.04.2012

Creative Commons license: CC BY (attribution)