Abstract
ABSTRACT Marine calcareous algae capable of erecting self-supporting, skeletal frameworks are quantitatively important constituents in some Upper Devonian (Frasnian) carbonate complexes in Alberta. The blue-green algae, Renalcis and Sphaerocodium, and the provisionally classified red alga, Keega, are recorded and illustrated from facies in the Redwater and Virginia Hills fields. These same algae occur in reef facies in the Devonian Canning Basin reef complexes in Western Australia where Renalcis and Sphaerocodium are major framebuilding constituents.
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