Cover -- Half title -- Title -- Copyright -- Contents -- Preface -- List of Contributors -- Definitions -- Introduction -- 1. Principles and Procedures -- 2. Mammalian Biochronology of the Latest Cretaceous -- 3. Paleocene Biochronology: The Puercan Through Clarkforkian Land Mammal Ages -- 4. Wasatchian Through: Duchesnean Biochronology -- 5. The Chadronian, Orellan, and Whitneyan North American Land Mammal Ages -- 6. Mammalian Biochronology of the Arikareean Through Hemphillian Interval (Late Oligocene Through Early Pliocene Epochs) -- 7. The Blancan, Irvingtonian, and Rancholabrean Mammal Ages -- 8. Global Events and the North American Mammalian Biochronology -- Systematic Index -- Subject Index.