| Fossil mammals of the type Lance Formation, Wyoming. Part III. Eutheria and summary WA Clemens Univ. Calif. Publ. Geol. Sci. 94, 1, 1973 | 540 | 1973 |
| Late Cretaceous and Cenozoic mammals of North America: biostratigraphy and geochronology MO Woodburne Columbia University Press, 2004 | 312 | 2004 |
| Mesozoic mammals: the first two-thirds of mammalian history JA Lillegraven, Z Kielan-Jaworowska, WA Clemens (No Title), 1979 | 258 | 1979 |
| Levels of complexity in the microstructure of mammalian enamel and their application in studies of systematics WV Koenigswald, WA Clemens Scanning microscopy 6 (1), 16, 1992 | 247 | 1992 |
| Dinosaur bones: fossils or pseudomorphs? The pitfalls of physiology reconstruction from apatitic fossils Y Kolodny, B Luz, M Sander, WA Clemens Palaeogeography, Palaeoclimatology, Palaeoecology 126 (1-2), 161-171, 1996 | 239 | 1996 |
| Paleocene biochronology: the Puercan through Clarkforkian land mammal ages DL Lofgren, JA Lillegraven, WA Clemens, PD Gingerich, TE Williamson Late Cretaceous and Cenozoic mammals of North America: biostratigraphy and …, 2004 | 224 | 2004 |
| Where, when, and what-a survey of known Mesozoic mammal distribution WA Clemens Mesozoic mammals: the first two-thirds of mammalian history, 7-58, 1979 | 175 | 1979 |
| Cretaceous extinctions: multiple causes JD Archibald, WA Clemens, K Padian, T Rowe, N Macleod, PM Barrett, ... Science 328 (5981), 973-973, 2010 | 171 | 2010 |
| Origin and early evolution of marsupials WA Clemens Evolution, 1-18, 1968 | 162 | 1968 |
| Dinosaurs on the North Slope, Alaska: high latitude, latest Cretaceous environments EM Brouwers, WA Clemens, RA Spicer, TA Ager, LD Carter, WV Sliter Science 237 (4822), 1608-1610, 1987 | 161 | 1987 |
| New Late Cretaceous, North American advanced therian mammals that fit neither the marsupial nor eutherian molds WA Clemens, JA Lillegraven | 142 | 1986 |
| Calibration of chron C29r: New high-precision geochronologic and paleomagnetic constraints from the Hell Creek region, Montana CJ Sprain, PR Renne, WA Clemens, GP Wilson GSA Bulletin 130 (9-10), 1615-1644, 2018 | 138 | 2018 |
| Mammalian extinction, survival, and recovery dynamics across the Cretaceous-Paleogene boundary in northeastern Montana, USA GP Wilson | 137 | 2014 |
| Multituberculata WA Clemens, Z Kielan-Jaworowska, JA Lillegraven Mesozoic mammals: the first two-thirds of mammalian history 99, 149, 1979 | 135 | 1979 |
| Paleoecological implications of Alaskan terrestrial vertebrate fauna in latest Cretaceous time at high paleolatitudes WA Clemens, LG Nelms Geology 21 (6), 503-506, 1993 | 130 | 1993 |
| Upper Cretaceous–Paleocene biostratigraphy and magnetostratigraphy, Hell Creek and Tullock Formations, northeastern Montana JD Archibald, RF Butler, EH Lindsay, WA Clemens, L Dingus Geology 10 (3), 153-159, 1982 | 121 | 1982 |
| Marsupialia WA Clemens (No Title), 1966 | 121 | 1966 |
| Out with a whimper not a bang WA Clemens, JD Archibald, LJ Hickey Paleobiology 7 (3), 293-298, 1981 | 112 | 1981 |
| High-resolution chronostratigraphy of the terrestrial Cretaceous-Paleogene transition and recovery interval in the Hell Creek region, Montana CJ Sprain, PR Renne, GP Wilson, WA Clemens Bulletin 127 (3-4), 393-409, 2015 | 111 | 2015 |
| Late Cretaceous Extinctions: The fossil evidence currently available suggests that changes across the Cretaceous-Tertiary boundary were the result of gradual processes and not … JD Archibald, WA Clemens American Scientist 70 (4), 377-385, 1982 | 110 | 1982 |
