| Squirrels of the World RW Thorington, JL Koprowski, MA Steele, JF Whatton Johns Hopkins University Press, 2012 | 393 | 2012 |
| A preliminary analysis of a Neotropical mammal fauna JF Eisenberg, RW Thorington Jr Biotropica, 150-161, 1973 | 346 | 1973 |
| Techniques for the study of primate population ecology National Research Council | 338 | 1930 |
| Family sciuridae RW Thorington Jr, RS Hoffmann Mammal Species of the World, A taxonomic and geographic reference. Third edition, 2005 | 249 | 2005 |
| Observations of squirrel monkeys in a Colombian forest RW Thorington The squirrel monkey, 69-85, 1968 | 200 | 1968 |
| Body proportions and gliding adaptations of flying squirrels (Petauristinae) RW Thorington Jr, LR Heaney Journal of Mammalogy 62 (1), 101-114, 1981 | 181 | 1981 |
| Orders and families of recent mammals of the world S Anderson, JK Jones Wiley-Interscience, 1984 | 178 | 1984 |
| Amazonian biodiversity: assessing conservation priorities with taxonomic data WJ Kress, WR Heyer, P Acevedo, J Coddington, D Cole, TL Erwin, ... Biodiversity and Conservation 7 (12), 1577-1587, 1998 | 172 | 1998 |
| Squirrels: The Animal Answer Guide RW Thorington, Jr., K Ferrell Johns Hopkins University Press, 2006 | 159 | 2006 |
| Eocene plesiadapiform shows affinities with flying lemurs not primates RF Kay, RW Thorington, P Houde Nature 345 (6273), 342-344, 1990 | 146 | 1990 |
| Descriptive and comparative osteology of the oldest fossil squirrel, Protosciurus (Rodentia: Sciuridae) RJ Emry, RW Thorington, Smithsonian Institution Smithsonian institution press, 1982 | 142 | 1982 |
| Family sciuridae RS Hoffmann Mammal species of the world: Taxonomic and geographic reference, 419-466, 1993 | 140 | 1993 |
| The taxonomy and distribution of squirrel monkeys (Saimiri) RW Thorington Jr Handbook of squirrel monkey research, 1-33, 1985 | 132 | 1985 |
| An annotated classification of the Cercopithecoidea RW Thorington, CP Groves Old world monkeys, 629-647, 1970 | 127 | 1970 |
| Feeding and activity of Cebus and Saimiri in a Colombian forest RW Thorington Progress in primatology, 180-184, 1967 | 120 | 1967 |
| Seasonal food use and demographic trends in Sciurus granatensis WE GLANZ The ecology of a tropical forest: seasonal rhythms and long-term changes …, 1982 | 107 | 1982 |
| Radiographic estimation of long bone cross‐sectional geometric properties JA Runestad, CB Ruff, JC Nieh, RW Thorington Jr, MF Teaford American Journal of Physical Anthropology 90 (2), 207-213, 1993 | 95 | 1993 |
| Jaw muscles of Old World squirrels RK Thorington Jr, K Darrow Journal of morphology 230 (2), 145-165, 1996 | 93 | 1996 |
| Carpal development and morphology in archontan mammals BJ Stafford, RW Thorington Jr Journal of Morphology 235 (2), 135-155, 1998 | 90 | 1998 |
| Ecology of Neotropical red-tailed squirrels, Sciurus granatensis, in the Panama Canal Zone LR Heaney, RW Thorington Journal of Mammalogy 59 (4), 846-851, 1978 | 88 | 1978 |
