Contents -- Preface -- Acknowledgments -- 1 Introduction -- THE EARLY CENOZIC MAMMALIAN RADIATION -- TIMING OF THE CROWN-THERIAN RADIATION -- MAMMALIAN PHYLOGENY, INTERRELATIONSHIPS, AND CLASSIFICATION -- GEOCHRONOLOGY AND BIOCHRONOLOGY OF THE EARLY CENOZOIC -- PALEOGEOGRAPHIC SETTING DURING THE BEGINNING OF THE AGE OF MAMMALS -- PALEOCENE-EOCENE CLIMATE AND FLORA -- ORGANIZATION OF THE VOLUME -- 2 Mammalian Skeletal Structure and Adaptations -- SKULL -- DENTITION -- POSTCRANIAL SKELETON -- SKELETAL ADAPTATIONS -- 3 The Origin of Mammals -- WHAT IS A MAMMAL? -- THE EVOLUTIONARY TRANSITION TO MAMMALS -- 4 Synopsis of Mesozoic Mammal Evolution -- HISTORICAL BACKGROUND -- THE OLDEST MAMMALS -- DOCODONTA -- MULTITUBERCULATA -- EUTRICONODONTA -- SYMMETRODONTS -- EUPANTOTHERES -- TRIBOSPHENIC MAMMALS -- MESOZOIC MAMMALS OF UNCERTAIN AFFINITY -- 5 Metatheria: Marsupials and Their Relatives -- BASAL METATHERIANS -- PRIMITIVE MARSUPIALS -- 6 Earliest Eutherian Mammals -- 7 Cimolesta -- DIDELPHODONTA AND OTHER PRIMITIVE CIMOLESTA -- DIDYMOCONIDAE -- PANTOLESTA -- APATOTHERIA -- TAENIODONTA -- TILLODONTIA -- PANTODONTA -- 8 Creodonta and Carnivora -- CREODONTA -- CARNIVORA -- 9 Insectivora -- LEPTICTIDA -- LIPOTYPHLA -- 10 Archonta: Bats, Dermopterans, Primates, and Tree Shrews -- CHIROPTERA -- DERMOPTERA -- PRIMATES AND PLESIADAPIFORMES -- SCANDENTIA -- 11 "Edentates:" Xenarthra and Pholidota -- XENARTHRA -- PHOLIDOTA -- 12 Archaic Ungulates -- OLDEST UNGULATE RELATIVES -- CONDYLARTHRA: ARCHAIC UNGULATES -- ARCTOSTYLOPIDA -- MERIDIUNGULATA: ENDEMIC SOUTH AMERICAN UNGULATES -- DINOCERATA -- 13 Altungulata: Perissodactyls, Hyraxes, and Tethytheres -- PERISSODACTYLA -- PAENUNGULATA -- 14 Cete and Artiodactyla -- CETE AND CETACEA -- ARTIODACTYLA -- 15 Anagalida: Rodents, Lagomorphs, and Their Relatives -- PRIMITIVE ASIAN ANAGALIDANS AND POSSIBLE ANAGALIDANS.

MACROSCELIDEA -- GLIRES -- 16 Reflections and Speculations on the Beginning of the Age of Mammals -- EARLY CENOZOIC MAMMAL RECORD -- SYNOPSIS OF PALEOCENE AND EOCENE MAMMALS -- A FINAL NOTE -- Literature Cited -- Index -- A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W -- X -- Y -- Z.