| The principles of classification and a classification of mammals GG Simpson Bulletin of the AMNH 84, 1945 | 3963 | 1945 |
| The major features of evolution GG Simpson | 3166 | 1953 |
| Tempo and mode in evolution GG Simpson Columbia University Press, 1944 | 3052 | 1944 |
| Principles of animal taxonomy GG Simpson | 2972 | 1961 |
| The meaning of evolution: a study of the history of life and of its significance for man GG Simpson, L Simpson Yale University Press, 1949 | 1762 | 1949 |
| Quantitative zoology GG Simpson, A Roe, RC Lewontin Courier Corporation, 2003 | 1668 | 2003 |
| Species density of North American recent mammals GG Simpson Systematic Zoology 13 (2), 57-73, 1964 | 780 | 1964 |
| Splendid isolation: the curious history of South American mammals GG Simpson Yale University Press, 1980 | 710 | 1980 |
| Palaeontology of New York J Hall, GB Simpson, JM Clarke C. van Benthuysen, 1859 | 664 | 1859 |
| The Baldwin effect GG Simpson Evolution 7 (2), 110-117, 1953 | 505 | 1953 |
| This view of life: The world of an evolutionist GG Simpson Harcourt, Brace & World, 1964 | 496 | 1964 |
| The species concept GG Simpson Evolution 5 (4), 285-298, 1951 | 495 | 1951 |
| Behavior and evolution. AE Roe, GG Simpson Yale University Press, 1958 | 462 | 1958 |
| Horses. GG Simpson Horses., 1951 | 461* | 1951 |
| Quantitative zoology: Numerical concepts and methods in the study of recent and fossil animals. GG Simpson, A Roe McGraw-Hill Book Company, 1939 | 435 | 1939 |
| The beginning of the age of mammals GG Simpson Biological Reviews 12 (1), 1-46, 1937 | 381 | 1937 |
| Mammals and land bridges GG Simpson Journal of the Washington Academy of Sciences 30 (4), 137-163, 1940 | 374 | 1940 |
| Mammals and the nature of continents GG Simpson American Journal of Science 241 (1), 1-31, 1943 | 354 | 1943 |
| History of the fauna of Latin America GG Simpson American Scientist 38 (3), 361-389, 1950 | 316 | 1950 |
| Notes on the measurement of faunal resemblance GG Simpson American Journal of Science 258 (2), 300-311, 1960 | 307 | 1960 |
