James W ValentineJames W. Valentine is professor emeritus of integrative biology and is affiliated with the Museum of Paleontology and the Center for Integrative Genomics at the University of California, Berkeley. He is the author of Evolutionary Paleoecoloy of the Marine Biosphere, coauthor of Evolution and Evolving, and editor of Phanerozoic Diversity Patterns: Profiles in Macroevolution. Read More Read Less