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McLearn, F. H. (1942). The Neo-Triassic Cassianella fauna of Tyaughton Creek Valley, B.C. The Canadian Field-Naturalist. 56(7): 99-103.
McLearn, F. H. (1942). The Neo-Triassic Cassianella fauna of Tyaughton Creek Valley, B.C. The Canadian Field-Naturalist. 56(7): 99-103.