This accession consists of incoming and outgoing memoranda among the Department of Paleobiology and Smithsonian bureaus, offices and staff; and correspondence among
departmental staff and non-Smithsonian researchers and colleagues. Chairmen of the Department during this period included G. Arthur Cooper, 1963-1967; Porter M. Kier, 1967-1972;
Richard E. Grant, 1972-1977; Martin A. Buzas, 1977-1982; Ian G. MacIntyre, 1982-1987; Jack W. Pierce, 1987-1993; William A. DiMichele, 1993-1998; and Richard H. Benson, 1998-
. Materials predating 1963 were created by the Department of Geology.