Churkin, M., Jr. Geologic and paleogeographic setting of Paleozoic corals in Alaska.--Oliver, W. A., Jr., Merriam, C. W. and Churkin, M., Jr. Ordovician, Silurian, and Devonian corals of Alaska.--Armstrong, A. K. Carboniferous corals of Alaska.--Rowett, C. L. Stratigraphic distribution of Permian corals in Alaska.