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Renowned researchers summarize the current knowledge on ammonoid paleobiology. The book begins with a description of the systematic position of the Ammonoidea within the Cephalopoda, providing the phylogenetic framework for the rest of the book. Following discussions include soft- and hard-part morphology of ammonoids, rate of growth and ontogeny, and taphonomy and ecology. Closing chapters explore the distribution of ammonoids in time and space as well as their extinction at the end of the Cretaceous. With its diverse viewpoints and new material, this resource will benefit researchers and graduate students in paleontology, marine biology, and evolutionary biology.
This two-volume work is a testament to the abiding interest and human fascination with ammonites. We offer a new model to explain the morphogenesis of septa and the shell, we explore their habitats by the content of stable isotopes in their shells, we discuss the origin and later evolution of this important clade, and we deliver hypotheses on its demise. The Ammonoidea produced a great number of species that can be used in biostratigraphy and possibly, this is the macrofossil group, which has been used the most for that purpose. Nevertheless, many aspects of their anatomy, mode of life, development or paleobiogeographic distribution are still poorly known. Themes treated are biostratigraphy,...
From the outset, society in Japan has been shaped by its environmental context. The lush green mountainous archipelago of today, with its highly productive lowlands, supports a population of more than 127 million people and one of the most advanced economies in the world. How has this come about and at what environmental cost? Conrad Totman, one of the world's foremost scholars on Japanese, here provides a comprehensive and detailed account of the country's environmental history, from its beginnings to the present day. Professor Totman traces the country's development through successive historical phases, as early agricultural society based on non-intensive forms of cultivation gave way to m...
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