Download or read book Receptaculitids written by Matthew H. Nitecki and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Receptaculitids are extinct high-level fossils that provide a window into the history of life. After the discovery and analysis of a deposit of phosphatized receptaculitids on the Baltic Sea island of Öland, the authors conclude that receptaculitids possess an attribute not found in any other group of organisms, living or fossil.
Download or read book Ordovician Receptaculitids Trilobites and Brachiopods from the Grapevine Mountains California written by Merrill White Foster and published by . This book was released on 1964 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Petrographic Analysis of the Original Mineralogy of the Middle Ordovician Receptaculitid Fisherites Reticulatus Owen written by Heyo Towne Van Iten and published by . This book was released on 1984 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Algae written by E. Flügel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 628 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Community Paleoecology as a Geologic Tool written by and published by Geological Society of America. This book was released on 1987 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Problematic Fossil Taxa written by Antoni Hoffman and published by . This book was released on 1986 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: Problematic fossils--those groups of organisms that do not fit conveniently into any existing phylum--play a pivotal role in the reconstruction of the history of life, being in effect "early experiments." This lavishly illustrated volume provides careful analyses and descriptions--in anatomical, functional, and developmental terms--of most of the major problematic fossil taxa. Sixteen original papers, written by internationally recognized scholars, discuss the features that make these taxa problematic and that provide clues to their phylogenetic relationships. Since Precambrian groups have been well covered in the existing literature, Hoffman and Nitecki focus on Paleozoic, and especially Early Paleozoic organisms, although Precambrian biota are also discussed.
Download or read book Dorothy Hill Jubilee Memoir written by J. Roberts and published by . This book was released on 1983 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Great Ordovician Biodiversification Event written by Barry D. Webby and published by Columbia University Press. This book was released on 2004-04-14 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two of the greatest evolutionary events in the history of life on Earth occurred during Early Paleozoic time. The first was the Cambrian explosion of skeletonized marine animals about 540 million years ago. The second was the "Great Ordovician Biodiversification Event," which is the focus of this book. During the 46-million-year Ordovician Period (489–443 m.y.), a bewildering array of adaptive radiations of "Paleozoic- and Modern-type" biotas appeared in marine habitats, the first animals (arthropods) walked on land, and the first non-vascular bryophyte-like plants (based on their cryptospore record) colonized terrestrial areas with damp environments. This book represents a compilation by a large team of Ordovician specialists from around the world, who have enthusiastically cooperated to produce this first globally orientated, internationally sponsored IGCP (International Geological Correlation Program) project on Ordovician biotas. The major part is an assembly of genus- and species-level diversity data for the many Ordovician fossil groups. The book also presents an evaluation of how each group diversified through Ordovician time, with assessments of patterns of change and rates of origination and extinction. As such, it will become the standard work and data source for biotic studies on the Ordovician Period.
Download or read book Paleontology written by and published by . This book was released on 1972 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Geological Congress written by and published by . This book was released on 1972 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report of the Session written by and published by . This book was released on 1972 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Report written by and published by . This book was released on 1972 with total page 1182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1972 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical Morphology written by George R. McGhee and published by Columbia University Press. This book was released on 1999 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theoretical morphology--which seeks to sketch the range of forms that biological entities could take, with the ultimate goal of discovering why certain forms exist but others do not--is among paleontology's most significant contributions to the understanding of evolution. Today, with the aid of computers in developing conceivable morphologies, the discipline has been able to advance into a remarkable tool for the study of evolution. Yet despite these advances, the field remains largely untapped and ripe with research potential. In this volume, paleontologist George McGhee presents the first complete overview of the field, its advancements in recent years, and the challenges ahead. Theoretical Morphology provides readers with the background they need to launch their own research. McGhee describes the steps involved in defining the geometric parameters (theoretical morphospaces) for an organic form in order to generate a spectrum of other possible forms that have never actually appeared. He also addresses the simulation of actual processes of morphogenesis, with the goal of attaining a more nuanced comprehension of how evolutionary processes work. Theoretical Morphology takes readers through a variety of theoretical morphospaces including those for univalved, bivalved, discrete, and branching growth systems. With a glossary of terms and a comprehensive list of references on the subject, this is an excellent handbook for graduate students or professional scientists interested in employing these cutting-edge techniques in their own research.
