GENERAL DESCRIPTION...the editors are to be congratulated on a job well done....the volume offers most welcome insights... -- TREE Careful editing and the focus on integrated, comparative analysis of a single group keep this book from sharing the journal-issue fate of most technical symposium volumes. --CHOICE This book represents the first, broadly integrated look at the anatomical and physiological changes correlated with the origin of amniotes as evaluated against the cladistic relationships of the pertinent taxa. --TRENDS IN ECOLOGY AND EVOLUTION Amniote Origins integrates modern systematic methods with studies of functional and physiological processes, and illustrates how studies of paleobiology can be illuminated by studies of neonatology. For this reason, comparative anatomists and physiologists, functional morphologists, zoologists, and paleontologists will all find this unique volume very useful. Inspired by the prospect of integrating fields that have long been isolated from one another, Amniote Origins provides a thorough and interdisciplinary synthesis of one of the classic transitions of evolutionary history. KEY FEATURESIntegrates modern systematic methods with studies of functional and physiological processes Illustrates how studies of paleobiology can be illuminated by studies of neonatology Provides a thorough and interdisciplinary synthesis of one of the classic transitions of evolutionary history CONTENTS: Acknowledgments. Contributors. K.L.M. Martin and S.S. Sumida, An Integrated Approach to the Origin of Amniotes: Completing the Transition to Land. Phylogenetic Perspective: M. Laurin and R.R. Reisz, A New Perspective in Tetrapod Phylogeny. M.Y.S. Lee and P.S. Spencer, Crown-Clades, Key Characters and Taxonomic Stability: When is an Amniote not an Amniote? Biogeographical Perspective: D.S. Berman, S.S. Sumida, and R.E. Lombard, Biogeography of Primitive Terrestrial Amniotes. J.B. Graham, N. Aguilar, R. Dudley, and C. Gans, The Late Paleozoic Atmosphere and the Ecological and Evolutionary Physiology of Tetrapods. Feeding: G.V. Lauder and G.B. Gillis, Origin of the Amniote Feeding Mechanism: Experimental Analysis of Outgroup Clades. N. Hotton III, E.C. Olson, and R. Beerbower,<$> The Amniote Transition and the Discovery of Herbivory. The Amniote Egg: M.J. Packard and R.S. Seymour, Evolution of the Amniote Egg. J. Stewart, Morphology and Evolution of the Egg of Oviparous Amniotes. Morphological Changes: L. Frolich, The Role of the Skin in the Origin of Amniotes: Permeability Barrier, Protective Covering, and Mechanical Support. S.S. Sumida, Locomotor Features of Taxa Spanning the Origin of Amniotes. Integrative Biology and the Origin of Amniotes: K.L.M. Martin and K.A. Nagy, Water Balance and the Physiology of the Amniote Transition. T. Garland, K.L.M. Martin, and R. Diaz-Uriarte, Reconstructing Ancestral Trait Values Using Squared Change Parsimony: Plasma Osmolarity at the Amniote Transition. Subject Index.