Download or read book Devonian Events and Correlations written by R. T. Becker and published by Geological Society of London. This book was released on 2007 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Devonian was a peculiar period, characterized by simplified plate tectonic configurations, climatic overheating and widely flooded continents. The bloom of fishes and ammonoids, extensive reef complexes, and the conquest of land indicate major biosphere innovations, punctuated by many global events, including two of the biggest mass extinctions. The Devonian was the first system for which subdivisions were formally defined. This was achieved by significant advances in pelagic biostratigraphy. The chronostratigraphic framework and interdisciplinary techniques allow us to correlate intervals or sudden events across facies boundaries, in order to reconstruct the sedimentary and evolutionary history of the system with highest precision. This volume honors the lifetime stratigraphic achievements of Michael Robert House (1930-2002). Based on case studies from Europe, North Africa and North America, it shows how the combination of biostratigraphy, chemostratigraphy, magnetostratigraphy, sequence stratigraphy and event stratigraphy can contribute to a much deeper understanding of both regional and global environmental change.

Download or read book When the Invasion of Land Failed written by George R. McGhee Jr. and published by Columbia University Press. This book was released on 2013-10-22 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: The invasion of land by ocean-dwelling plants and animals was one of the most revolutionary events in the evolution of life on Earth, yet the animal invasion almost failed—twice—because of the twin mass extinctions of the Late Devonian Epoch. Some 359 to 375 million years ago, these catastrophic events dealt our ancestors a blow that almost drove them back into the sea. If those extinctions had been just a bit more severe, spiders and insects—instead of vertebrates—might have become the ecologically dominant forms of animal life on land. This book examines the profound evolutionary consequences of the Late Devonian extinctions and the various theories proposed to explain their occurrence. Only one group of four-limbed vertebrates exists on Earth, while other tetrapod-like fishes are extinct. This gap is why the idea of "fish with feet" seems so peculiar to us, yet such animals were once a vital part of our world, and if the Devonian extinctions had not happened, members of these species, like the famous Acanthostega and Ichthyostega, might have continued to live in our rivers and lakes. Synthesizing decades of research and including a wealth of new discoveries, this accessible, comprehensive text explores the causes of the Devonian extinctions, the reasons vertebrates were so severely affected, and the potential evolution of the modern world if the extinctions had never taken place.

Download or read book Understanding Late Devonian and Permian Triassic Biotic and Climatic Events written by Jeff Over and published by Elsevier. This book was released on 2005-12-02 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Late Devonian and Permian-Triassic intervals are among the most dynamic episodes of Earth history, marked by large secular changes in continental ecosystems, dramatic fluctuations in ocean oxygenation, major phases of biotic turnover, volcanism, bolide impact events, and rapid fluctuations in stable isotope systems and sea level. This volume highlights contributions from a broad range of geological sub-disciplines currently striving to understand these critical intervals of geologically rapid, global-scale changes.* Provides updated, current models for the mid-Late Devonian and Permian-Triassic mass extinction episodes* Highlights several new analytical approaches for developing quantitative datasets* Takes an integrated approach presenting datasets from a broad range of sub-disciplines

Download or read book Simulation of Ground water Flow in the Silurian Devonian Aquifer Cedar Falls Iowa written by Michael J. Turco and published by . This book was released on 2002 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Devonian Change written by Peter Königshof and published by Geological Society of London. This book was released on 2009 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rapid evolution of terrestrial ecosystems in the Devonian Period combined with climate change and many global events had a pronounced influence on sedimentation and biodiversity in various terrestrial and marine settings. This volume presents a number of case studies which cover the following topics land-sea transitional settings, the role of ecological-evolutionary subunits, the diversity and palaeoecology of reef building organisms and microfloras with respect to sedimentary processes and global events.

Download or read book Bibliographic Index of North American Devonian Cephalopoda written by Edward Martin Kindle and published by Geological Society of America. This book was released on 1939 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Devonian Floras written by E. A. Newell Arber and published by Cambridge University Press. This book was released on 2014-06-12 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1921, this book presents a detailed account 'of the two Devonian land floras'. Illustrative figures and textual notes are incorporated throughout. This book will be of value to anyone with an interest in the Devonian period, botany and the history of science.

Download or read book Lower Devonian written by and published by . This book was released on 1913 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Devonian Ammonoids of America written by Arthur K. Miller and published by Geological Society of America. This book was released on 1938 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Devonian Climate Sea Level and Evolutionary Events written by R. T. Becker, 1st and published by Geological Society of London. This book was released on 2016-10-20 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: The geological and palaeontological records of climate change and evolutionary events reflect Earth’s widely fluctuating climate systems. Past climates hold the clues to understanding future developments. In this context, research on linked climate, biodiversity and sea-level fluctuations of the Devonian contributes to the general knowledge of deep-time climate dynamics. A fruitful co-operation between the International Geoscience Programme IGCP 596 and the International Subcommission on Devonian Stratigraphy (SDS) addressed the complex succession of climate-linked Devonian global events of varying magnitude. The primary goal of IGCP 596 was to assess mid-Palaeozoic climate changes and their impact on marine and terrestrial biodiversity using an interdisciplinary approach. The focus of SDS includes a revision of the eustatic sea-level curve and the integration of refined chrono- and biostratigraphy with modern chemo-, magneto-, cyclo-, event- and sequence stratigraphy. This enabled the much improved dating and correlation of abiotic perturbations, evolutionary changes, organism and ecosystem ranges. Results by 37 authors are presented in 14 chapters, which cover the entire Devonian.

Download or read book Eurypterids of the Devonian Holland Quarry Shale of Ohio written by Erik Norman Kjellesvig-Waering and published by DigiCat. This book was released on 2022-08-10 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: In contrast to the Silurian, the North American Devonian deposits have not yielded a rich fauna of eurypterids, although the list of known species is continuously growing. The occurrence of eurypterids in the Holland Quarry shale, a lens locally underlying the Sylvania sandstone at the base of the Devonian in Lucas County, Ohio (see Carman, 1960), adds materially to our relatively meager knowledge of Devonian forms in North America.

Download or read book Early Devonian Brachiopod Zoogeography written by Arthur James Boucot and published by Geological Society of America. This book was released on 1969 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Revision of the Families and Genera of the Devonian Tetracorals written by Erwin Charles Stumm and published by Geological Society of America. This book was released on 1949 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Devonian written by Maryland Geological Survey and published by . This book was released on 1913 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Devonian Stratigraphy and Paleontology of The Roberts Mountains Region Nevada written by Charles Warren Merriam and published by Geological Society of America. This book was released on 1940 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Frasnian Upper Devonian Colonial Disphyllid Corals from Western Canada written by Ross A. McLean and published by NRC Research Press. This book was released on 2010 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Late Proterozoic to Devonian Continental Sequence Alaska written by Julie A. Dumoulin and published by Geological Society of America. This book was released on 2014 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nothing provided