A NEW PLICATULID BIVALVE FROM THE LATE CENOZOIC OF SOUTHERN FLORIDA.SHAAK GD; NICOL D.1974; TULANE STUD. GEOL. PALEONTOL.; USA; 1974, VOL. 11, NUM. 0002, P. 105 A 108Serial Issue

DIVERSITY AND COMMUNITY STRUCTURE OF THE BRUSH CREEK MARINE INTERVAL (CONEMAUGH GROUP, UPPER PENNSYLVANIAN) IN THE APPALACHIAN BASIN OF WESTERN PENNSYLVANIA.SHAAK GD.1975; BULL. FLORIDA STATE MUS. BIOL. SCI.; U.S.A.; DA. 1975; VOL. 19; NO 2; PP. 65-133; BIBL. 4 P.; 21 ILL.Article

REFLECTION OF COMMUNITY STANDING CROP IN PENNSYLVANIAN FAUNAL ASSEMBLAGES.SHAAK GD; ROLLINS HB.1972; GEOL. SOC. AMER., ABSTR. PROGRAMS; USA; 1972, VOL. 4, NUM. 0007, P. 661Serial Issue

FAUNAL SUCCESSION AND ENVIRONMENTS OF DEPOSITION OF PLEISTOCENE LAKE BUFFALO, NORTHWESTERN OKLAHOMASHAAK GD; FRANZ R.1978; OKLAHOMA GEOL. NOTES; USA; DA. 1978; VOL. 38; NO 5; PP. 175-190; BIBL. 1 P.; 8 ILL.Article

STRATIGRAPHIC SIGNIFICANCE OF THE TERTIARY ECHINOID EUPAGATUS IRGENS ZACHOS.ZACHOS LG; SHAAK GD.1978; J. PALEONTOL.; USA; DA. 1978; VOL. 52; NO 4; PP. 921-927; H.T. 1; BIBL. 15 REF.; 7 ILL.Article

STRATIGRAPHIC SIGNIFICANCE OF EUPATAGUS INGENS.ZACHOS LG; SHAAK GD.1975; FLORIDA SCIENTIST; USA; (39TH ANNU. MEET. FLORIDA ACAD. SCI.; LAKELAND; 1975 . RES. COMMUN,1975, VOL. 38, P. 17Miscellaneous

ASYMMETRICAL COMMUNITY SUCCESSION IN A TRANSGRESSIVE-REGRESSIVE SEQUENCEDONAHUE J; ROLLINS HB; SHAAK GD et al.sdIN: 24E CONGR. GEOL. INT. MONTREAL, 1972; OTTAWA 24E CONGR. GEOL. INT. ,1972, VOL. 7, P. 74 A 81Miscellaneous

THE CRYSTAL RIVER FORMATION (EOCENE) AT MARTIN, MARION COUNTY, FLORIDA.NICOL D; SHAAK GD; HOGANSON JW et al.1976; TULANE STUD. GEOL. PALEONTOL.; U.S.A.; DA. 1976; VOL. 12; NO 3; PP. 137-144; BIBL. 1 P.; 4 ILL.Article