Sepkoski Jr, J J (1991) A model of onshore-offshore change in faunal diversity. Paleobiology 17:58-77 |
Sepkoski Jr, J J (1988) Alpha, beta, or gamma: where does all the diversity go? Paleobiology 14:221-34 |
Sepkoski Jr, J J (1987) Environmental trends in extinction during the Paleozoic. Science 235:64-6 |