This spreadsheet application allows users to make graphs of the diversity and stratigraphic ranges of Phanerozoic marine animals. FossilPlot uses the compendium of marine animal genera compiled by J.J. Sepkoski and his associates at the University of Chicago, from 'A compendium of fossil marine animal genera', found in Bulletins of American Paleontology, v. 363, p. 1-560. The application operates in Microsoft Excel for PC or Mac, and is free for users to download. A slide show on how to use the application (also downloadable) is provided.
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