Results: 1 - 4 of 4
Dec 31, 1959
Bulletin
… the upper part of the Kaskapau shale and the lower part of the Puskwaskau shale in the Smoky River area of … diagnostic species from each shale unit are listed. The …
Dec 31, 1954
Report
… the basal portion of the Alberta shale of southern Alberta, the lower part of the Cody shale of Wyoming, the Coleraine …
Dec 31, 1957
Bulletin
… the lower part of the Colorado shale of Alberta and Saskatchewan, and in the Mowry shale of the Black Hills area of …
Dec 31, 1966
Bulletin
… with the first white-speckled shale 'zone' is used as a datum …