LATE ORDOVICIAN BENTHIC MARINE COMMUNITIES IN CENTRAL NEW YORK.(ABSTRACT).BRETSKY PW.1968; GEOL. SOC. AMER., ABSTR. PROGRAMS; USA; 1968(11)Miscellaneous

MACROINVERTEBRATE TEILZONES AND EPISODIC FAUNAL CHANGES FROM AN UPPER ORDOVICIAN FLYSCH IN QUEBEC.BRETSKY PW.1977; CANAD. J. EARTH SCI.; CANADA; DA. 1977; VOL. 14; NO 7; PP. 1674-1686; H.T. 2; ABS. FR.; BIBL. 24 REF.; 4 ILL.Article

EVOLUTIONARY PATTERNS IN THE PALEOZOIC BIVALVIA: DOCUMENTATION AND SOME THEORETICAL CONSIDERATIONSBRETSKY PW.1973; GEOL. SOC. AMER., BULL.; U.S.A. ; 1973, VOL. 84, NUM. 0006, P. 2079 A 2096Serial Issue

COMMUNITY EVOLUTION AND THE LATE ORDOVICIAN OF THE NICOLET RIVER VALLEY, QUEBEC.BRETSKY PW.1974; GEOL. SOC. AMER., ABSTR. PROGRAMS; USA; 1974, VOL. 6, NUM. 0007, P. 665 A 666Serial Issue

CENTRAL APPALACHIAN LATE ORDOVICIAN COMMUNITIES.BRETSKY PW.1969; GEOL. SOC. AMER., BULL.; USA; 1969(2), VOL. 80, NUM. 0002, P. 193 A 212Miscellaneous

MORPHOLOGICAL VARIABILITY AND CHANGE IN THE PALAEOTAXODONT BIVALVE MOLLUSK NUCULITES PLANULATUS (UPPER ORDOVICIAN OF QUEBEC).BRETSKY SS; BRETSKY PW.1977; J. PALEONTOL.; U.S.A.; DA. 1977; VOL. 51; NO 2; PP. 256-271; BIBL. 1 P. 1/2; 8 ILL.Article

EVOLUTION OF PALEOZOIC BENTHIC MARINE INVERTEBRATE COMMUNITIES.BRETSKY PW JR.1969; PALAEOGEOGR. PALAEOCLIMATOL. PALAEOECOL.; NLD; 1969(3), VOL. 6, NUM. 0001, P. 45 A 59Miscellaneous

THE MAINTENANCE OF EVOLUTIONARY EQUILIBRIUM IN LATE ORDOVICIAN BENTHIC MARINE INVERTEBRATE FAUNAS.BRETSKY PW; BRETSKY SS.1976; LETHAIA; NORVEGE; DA. 1976; VOL. 9; NO 3; PP. 223-233; BIBL. 14 REF.; 7 ILL.Article

SUCCESSION AND REPETITION OF LATE ORDOVICIEN FOSSIL ASSEMBLAGES FROM THE NICOLET RIVER VALLEY, QUEBEC.BRETSKY PW; BRETSKY SS.1975; PALEOBIOLOGY; U.S.A.; 1975, VOL. 1, NUM. 0003, P. 225 A 237Serial Issue

LIFE HABITS OF DIMINUTIVE BIVALVE MOLLUSCS IN THE MAQUOKETA FORMATION (UPPER ORDOVICIAN).SNYDER J; BRETSKY PW.1971; AMER. J. SCI.; USA; 1971, VOL. 271, NUM. 0003, P. 227 A 251Miscellaneous

PALEOECOLOGY OF ORDOVICIAN SCAPHOPODS IN EASTERN IOWA (ABSTRACT).BRETSKY PW; BIRMINGHAM JJ.1969; GEOL. SOC. AMER., ABSTR. PROGRAMS; USA; 1969, NUM. 007Miscellaneous

PHENETIC VARIATION IN SOME MIDDLE ORDOVICIAN STROPHOMENID BRACHIOPOD.BRETSKY PW; BRETSKIJ SS.1975; GEOL. SOC. AMER., MEM.; USA; 1975, NUM. 0142, P. 3 A 36Serial Issue

AN ESSAY ON GENETIC-ADAPTIVE STRATEGIES AND MASS EXTINCTIONS.BRETSKY PW; LORENZ DM.1970; GEOL. SOC. AMER., BULL.; USA; 1970(8), VOL. 81, NUM. 0008, P. 2449 A 2456Miscellaneous

UPPER ORDOVICIAN ECOLOGY OF THE CENTRAL APPALACHIANS. (ABSTRACTBRETSKY PW JR.1969; DISSERT. ABSTR. INTERNATION., B; USA; 1969(5), VOL. 29, NUM. 0011, P. 4223 A 4224Miscellaneous

BRACHIOPOD ECOLOGY IN THE ORDOVICIAN OF EASTERN PENNSYLVANIA.BRETSKY PW; FLESSA KW; BRETSKY SS et al.1969; J. PALEONTOL.; USA; 1969(3), VOL. 43, NUM. 0002, P. 312 A 321Miscellaneous

MOLLUSCAN AND BRACHIOPOD DOMINATED BIOFACIES IN THE PLATTEVILLE FORMATION (MIDDLE ORDOVICIAN), UPPER MISSISSIPPI VALLEY.BRETSKY PW; BRETSKY SS; SCHAEFER PJ et al.1977; BULL. GEOL. SOC. DENM.; DENM.; DA. 1977; VOL. 26; NO 1-2; PP. 115-132; BIBL. 1 P.; 15 ILL.Article

EVOLUTION OF FOSSIL INVERTEBRATE COMMUNITIES: ADDITIONAL FACTORS -DISCUSSION.TAYLOR ME; SHEEHAN PM; BRETSKY PW et al.1968; SCIENCE; USA; 1968(8), VOL. 161, NUM. 3840Miscellaneous

FRAGILE ECOSYSTEMS = ECOSYSTEMES FRAGILESBRETSKY PW; BRETSKY SS; LEVINTON J et al.1973; SCIENCE; U.S.A.; DA. 1973; VOL. 179; NO 4078; PP. 1147; BIBL. 6 REF.Serial Issue