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Extinction
Some 250 million years ago, the earth suffered the greatest biological crisis in its history. Around 95 percent of all living species died out—a global catastrophe far greater than the dinosaurs' demise 185 million years later. How this happened remains a mystery. But there are many competing theories. Some blame huge volcanic eruptions that covered an area as large as the continental United States; others argue for sudden changes in ocean levels and chemistry, including burps of methane gas; and still others cite the impact of an extraterrestrial object, similar to what caused the dinosaurs' extinction. Extinction is a paleontological mystery story. Here, the world's foremost authority on...
CAMBRIAN EXPLOSION
The Cambrian Period records one of the most extraordinary transitions in the history of life. Although animals may have first appeared nearly 700 million years ago, with the earliest sponges, their initial diversifications appear to have been modest until a richly diverse fossil fauna appeared abruptly about 170 million years later. In The Cambrian Explosion, Erwin and Valentine synthesize research from many fields to explain why there was such remarkable novelty of animal forms.
Industrial Chemical Process Design, 2nd Edition
Written by a hands-on industry consultant and featuring more than 200 illustrations,
Evolutionary Paleobiology
Representing the state of the art in evolutionary paleobiology, this book provides a much-needed overview of this rapidly changing field. An influx of ideas and techniques both from other areas of biology and from within paleobiology itself have resulted in numerous recent advances, including increased recognition of the relationships between ecological and evolutionary theory, renewed vigor in the study of ecological communities over geologic timescales, increased understanding of biogeographical patterns, and new mathematical approaches to studying the form and structure of plants and animals. Contributors to this volume—a veritable who's who of eminent researchers—present the results of original research and new theoretical developments, and provide directions for future studies. Individually wide ranging, these papers all share a debt to the work of James W. Valentine, one of the founders of modern evolutionary paleobiology. This volume's unified approach to the study of life on earth will be a major contribution to paleobiology, evolution, and ecology.
The Great Paleozoic Crisis
The culmination of more than fifty years of research by the foremost living expert on plant classification, Diversity and Classification of Flowering Plants is an important contribution to the field of plant taxonomy. In the last decade, the system of classifying plants has been thoroughly revised. Instead of describing every individual family, Takhtajan includes descriptions in keys to families, which he calls "descriptive keys." The advantage of descriptive keys is that they give both the characteristic features of the families and their differences. The delimitation of families and orders drastically differs from the one accepted by the Englerian school and from the one accepted in Arthur Cronquist's system. Takhtajan favors the smaller, more natural families and orders, which are more coherent and better-defined, where characters are easily grasped, and which are more suitable for information retrieval and phylogenetic studies, including cladistic analysis (because it reduces polymorphic codings).
The Origin of Higher Taxa
This text discusses whether the origin of radically new kinds of organisms - new higher taxa - are the result of normal Darwinian evolution proceeding, or whether unusual genetic processes and/or special environmental circumstances are necessary.
Crude Look At The Whole, A: A Decade Later: Insights Into Real-world Complexity That Still Resonate
In March 2013, Para Limes organized the conference A Crude look at the Whole. It turned out to be an extraordinary meeting, even more so eleven years later. During the conference the speakers, all giants on their own turf, captured the excitement about what the new field of complexity science could mean for understanding our world and molded it in approaches to extract meaning from these budding insights. Now, eleven years later, the (video's of the) talks create a thrill, that may be similar to what Newton felt when he realized that standing on the shoulders of giants allowed him to see what he saw.In this book we have tried to capture that whole, while at the same time keeping the individual parts in view. We have done so by transcribing and editing the individual presentations, adding a summary to all of them and indicating the relevance of each of the presentations to ongoing and further explorations.
Industrial Chemical Process Design
This book is a true engineer’s toolkit, providing the solutions to some of the most complex problems in Chemical process design: sizing equipment, estimating cost for modular packages and performing such operations as liquid-liquid extraction and gas in liquid separation vessel sizing and rating. Complex operations and formulas are presented and explained in an easy-to-understand format. Industrial/Chemical Process Design provides a step by step tutorial for authoring tailor made Visual Basic programs.
Fossils of the Burgess Shale
This publication, designed for the public, describes the discovery of the Burgess shale, recent work on its formation, and the flora and fauna found in it. The major animal groups are described and illustrated. The scientific significance of the shale is explained.
FOSSILS OF BURGESS SHALE PB
Since its discovery in 1909 by Charles Doolittle Walcott, then Secretary of the Smithsonian Institution, the Burgess Shale in the Canadian Rocky Mountains has fascinated both scientists and the public with its plethora of weird wonders - life forms of the past so unfamiliar they cannot easily be assigned to known taxonomic groups. This century's most significant invertebrate fossil discovery, the Burgess Shale provides an unprecedented window into the explosive evolution during the Cambrian period that began about 540 million years ago, one of the most enigmatic episodes in the history of life. This book provides the first comprehensive set of illustrations of the extraordinary life forms re...
