Correlation of stratigraphic units in North America

"Correlation of Stratigraphic Units of North America (COSUNA) Project"--Envelopes; Each sheet includes location maps. Location map also on envelopes; Project described in: Correlation of stratigraphic units of North America, COSUNA / Orlo E. Childs. Chronostratigraphic and geochronometric scales in COSUNA : stratigraphic correlation charts of the United States / Amos Salvador. (In: AAPG bulletin ; v. 69, no. 2 (Feb. 1985), p. 173-189); Detailed information associated with each of the sheets is available through the COSU database on the Petroleum Data System of the University of Oklahoma, Norman; [1]. Atlantic coastal plain region / regional coordinators, Robert R. Jordan, Richard V. Smith --; [2]. Northern California region / regional coordinators, Charles C. Bishop, James F. Davis --; [3]. Central California region / regional coordinators, Charles C. Bishop, James F. Davis -- ; [4]. Southern California region / regional coordinators, Charles C. Bishop, James F. Davis -- ; [5]. Central and southern Rockies region / regional coordinators, Harry C. Kent, Elton L. Couch, Rex A. Knepp -- ; [6]. Great Basin region / regional coordinator, Lehi F. Hintze -- ; [7]. Gulf Coast region / regional coordinators, Jules Braunstein, Paul Huddlestun, Ralph Biel -- ; [8]. Midwestern basin and Arches region / regional coordinator, Robert H. Shaver -- ; [9]. Mid-Continent region / regional coordinator, Frank J. Adler -- ; [10]. Northern Alaska region / regional coordinators, Ross G. Schaff, Wyatt G. Gilbert -- ; [11]. Southern Alaska region / regional coordinators, Ross G. Schaff, Wyatt G. Gilbert -- ; [12]. Northern Appalachian region / regional coordinators, Douglas G. Patchen, Katharins Lee Avary, Robert B. Erwin; [13]. Southern Appalachian region / regional coordinators, Douglas G. Patchen, Katharine Lee Avary, Robert B. Erwin -- ; [14]. New England region / regional coordinator, James W. Skehan -- ; [15]. Northern mid-Continent region / regional coordinators, D.J. Bergstrom, G.B. Morey -- ; [16]. Northern Rockies/Willison Basin region / regional coordinators, William W. Ballard, John P. Bluemie, Lee C. Gerhard -- ; [17]. Northwest region / regional coordinators, Donald A. Hull ... [et al.] -- ; [18]. Piedmont/Blue Ridge region / regional coordinator, Michael Higgins -- ; [19]. Southwest/southwest mid-Continent region / regional coordinators, John M. Hills, Frank E. Kottlowski -- ; [20]. Texas-Oklahoma tectonic region / regional coordinator, Charles J. Mankin;