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This definitive work, based on collections made throughout the world, represents the collaborative effort of most of the world's experts on living cephalopods. The book provides detailed instructions for collecting, transporting, examining, and identifying the lower 'beaks' or mandibles of cephalopods, including almost all known living genera. The many new illustrations, keys, descriptions, and measurements mark this book as a major advance over previous handbooks and make it an essential reference work.
In myths and legends, squids are portrayed as fearsome sea-monsters, lurking in the watery deeps waiting to devour humans. Even as modern science has tried to turn those monsters of the deep into unremarkable calamari, squids continue to dominate the nightmares of the Western imagination. Taking inspiration from early weird fiction writer H. P. Lovecraft, modern writers such as Jeff VanderMeer depict squids as the absolute Other of human civilization, while non-Western poets such as Daren Kamali depict squids as anything but threats. In Squid, Martin Wallen traces the many different ways humans have thought about and pictured this predatory mollusk: as guardians, harbingers of environmental collapse, or an untapped resource to be exploited. No matter how we have perceived them, squids have always gazed back at us, unblinking, from the dark.
Paleontology and Neontology of Cephalopods examines information that throws new light on the evolution of coleoids. This book is part of a multivolume work, The Mollusca, which attempts to provide comprehensive treatment of major areas of molluscan research. The Mollusca is intended to serve several disciplines—zoology, biochemistry, physiology, and paleontology. It will prove useful to researchers and to all others with interests in mollusks. The book begins with a review of the main features of cephalopod evolution. This is followed by separate chapters on the evolution of the gladius in coleoids; the buccal mass of Cephalopoda; beaks of living coleoid Cephalopoda; cephalopod hooks; statoliths of cephalopods; buoyancy and locomotion in recent cephalopods; and evolution of the cephalopod brain and cephalopod statocyst. Subsequent chapters deal with the photophore structure and evolution within the Enoploteuthinae; the interrelationships of genera within the Ommastrephidae; evolutionary pathways traversed by the cephalopod family Cranchiidae; the cephalopod fauna of the European Mediterranean; and the evolution of recent cephalopods.
Special Volume on Kogia biology presents in-depth and up-to-date reviews on all aspects of marine biology. Published since 1963, this serial updates on a variety of topics that will appeal to postgraduates and researchers in marine biology, fisheries science, ecology, zoology and biological oceanography. Reviews articles on the latest advances in marine biology Authored by leading figures in their respective fields of study Presents material that is widely used by managers, students and academic professionals in the marine sciences
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, paleoecology, paleoenvironment, paleobiogeography, evolution, phylogeny, and ontogeny. Advances such as an explosion of new information about ammonites, new technologies such as isotopic analysis, tomography and virtual paleontology in general, as well as continuous discovery of new fossil finds have given us the opportunity to present a comprehensive and timely "state of the art" compilation. Moreover, it also points the way for future studies to further enhance our understanding of this endlessly fascinating group of organisms.