WICANDER, E. Reed, & Alfred R. LOEBLICH, Jr. 1977 Organic-walled microphytoplankton and its stratigraphic significance from the Upper Devonian Antrim Shale, Indiana, U.S.A. Palaeontographica, Abt. B, Paläophytol. 160(4/6): 129-165, 11 pls., 3 text-figs. |