D. M. Loranger, 1954. "Ireton Microfossil Zones of Central and Northeastern Alberta", Western Canada Sedimentary Basin: A Symposium; Sponsored by the Alberta Society of Petroleum Geologists, and the Saskatchewan Society of Petroleum Geologists, Leslie M. Clark
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The Ire ton shale member of the Woodbend formation in northeastern and central Alberta contains microfossil assemblages of Upper Devonian age that can be used for correlating stratigraphic sections throughout a large portion of the plains area. These fossils can make substantial contributions to both age determination and facies studies, which are of indirect but pertinent value in understanding the geology of this province. Thirty-three of the most commonly occurring species belonging to twenty genera are figured and described.