This is a Paleobiology Database Online Systematics Archive that lists all Phanerozoic marine animal families and genera. Families and genera are both assigned directly to orders, so genera are not assigned to families.

The data have been used in numerous publications by many authors having to do with Phanerozoic diversity and exinction patterns.

The data were compiled by Jack Sepkoski through 1999. The data were uploaded in January, 2003.

• J. J. Sepkoski, Jr. 1982. A compendium of fossil marine families. Milwaukee Public Museum Contributions in Biology and Geology 51:1-125.
• J. J. Sepkoski, Jr. 1992. A compendium of fossil marine animal families, 2nd edition. Milwaukee Public Museum Contributions in Biology and Geology 83:1-156.
• J. J. Sepkoski, Jr. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560.

Michael Foote and David Jablonski
Department of the Geophysical Sciences
The University of Chicago
5734 South Ellis Avenue
Chicago, Illinois 60637