| Chazyan and related brachiopods GA Cooper Smithsonian Miscellaneous Collections, 1956 | 690 | 1956 |
| Permian brachiopods of west Texas, V GA Cooper, RE Grant | 529 | 1976 |
| Morphology, classification and life habits of the Productoidea (Brachiopoda) H Muir-Wood, GA Cooper | 509 | 1960 |
| Correlation of the Devonian sedimentary formations of North America GA Cooper, C Butts, KE CASTER, GH Chadwick, W Goldring, EM Kindle, ... Bulletin of the Geological Society of America 53 (12_1), 1729-1793, 1942 | 486 | 1942 |
| Brachiopod genera of the suborders Orthoidea and Pentameroidea C Schuchert Memoirs of the Peabody Museum of Natural History 4, 1-27, 1932 | 395 | 1932 |
| Synopsis of the brachiopod genera of the suborders Orthoidea and Pentameroidea, with notes on the Telotremata C Schuchert, GA Cooper American Journal of Science 22 (129), 241-251, 1931 | 245 | 1931 |
| Correlation of the Ordovician formations of North America Ordovician Subcommittee of the Committee on Stratigraphy, of the National ... Geological Society of America Bulletin 65 (3), 247-314, 1954 | 237 | 1954 |
| Stratigraphy of the Hamilton group of New York GA Cooper Yale University, 1929 | 201* | 1929 |
| Ozarkian and Canadian brachiopoda EO Ulrich, GA Cooper Geological Society of America, 1938 | 194 | 1938 |
| Terebratulacea (Brachiopoda), Triassic to Recent: a study of the Brachidia (loops) GA Cooper | 163 | 1983 |
| Stratigraphy near Caborca, northwest Sonora, Mexico GA Cooper, ARV Arellano AAPG Bulletin 30 (4), 606-611, 1946 | 157 | 1946 |
| Devonian brachiopods of New Mexico G Cooper | 149 | 1982 |
| Permian brachiopods of west Texas, II. GA Cooper Smithson. Contr. Paleobiol 15, 233-793, 1974 | 149 | 1974 |
| New genera of North American brachiopods GA Cooper Journal of the Washington Academy of Sciences 32 (8), 228-235, 1942 | 131 | 1942 |
| New genera and species of Ozarkian and Canadian brachiopods EO Ulrich, GA Cooper Journal of Paleontology, 616-631, 1936 | 128 | 1936 |
| New Permian brachiopods from west Texas GA Cooper, RE Grant Smithsonian Contributions to Paleobiology, 1969 | 115 | 1969 |
| Correlation of the Permian formations of North America Permian Subcommittee of the National Research Council's Committee on ... Geological Society of America Bulletin 71 (12), 1763-1806, 1960 | 113 | 1960 |
| Lower Middle Ordovician stratigraphy of the Shenandoah Valley, Virginia BN Cooper, G Arthur Cooper Geological Society of America Bulletin 57 (1), 35-114, 1946 | 112 | 1946 |
| Brachiopods from the Caribbean Sea and adjacent waters GA Cooper University of Miami Press, 1977 | 110 | 1977 |
| Genera of Tertiary and Recent rhynchonelloid brachiopods GA Cooper Smithsonian Miscellaneous Collections, 1959 | 110 | 1959 |
