J. John Sepkoski Jr. (1948-1999).
Raup
D M
DM
Geophysical Sciences Department, University of Chicago, Illinois 60637, USA. draup@mail.wiscnet.net
D000818:Animals; D005075:Biological Evolution; D016208:Databases, Factual; D005580:Fossils; D049673:History, 20th Century; D010163:Paleontology / Q000266:history*; D014481:United States