Download or read book Plant Diversity in the Early Devonian written by Jeffery A. Barrett and published by . This book was released on 2016 with total page 1712 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Early Devonian epoch (419.2 ±3.2-393.3 ±1.2 Ma) (Gradstein 2012) marked the commencement of a rapid evolutionary radiation and increase in the diversity and complexity of basal tracheophytes and other groups of land plants. While the importance of the Early Devonian to the radiation of early land plants cannot be overstated, a comprehensive database compiling the most current knowledge of this flora has been lacking. Using a newly revised taxonomic system of Early Devonian land plants, this study seeks to assemble all Early Devonian records of tracheophytes and related land plants into one database in order to assess the geographic and stratigraphic patterns of plant diversity during this interval. Records were cross-referenced with previous analyses and other databases to ensure that the nomenclature, ages, locations, and other data reported for each record are as accurate and current as possible. The locations of fossil assemblages were plotted on both present-day and Early Devonian maps. The Early Devonian paleoflora was characterized by high levels of endemism among Incertae sedis taxa, zosterophyllopsids, and rhyniopsids, and a varied flora spread across six or possibly seven floristic provinces. Taxonomic richness was lowest during the Lochkovian which was dominated by Incertae sedis taxa and rhyniopsids, especially in Laurussia. Both genus and species richness peaked during the Pragian when zosterophyllopsids dominated the floras of most provinces. Overall taxonomic richness declined considerably during the Emsian, although taxonomic richness peaked in Laurussia and Siberia during this stage, largely as a result of the dominance of euphyllophytes. The database created for this study contains a total of 1325 records of 185 genera and 305 species distributed within 357 assemblages and forms the most comprehensive compilation of Early Devonian land plant records to date. The results of this study will provide a basis for future studies aimed at better understanding the patterns of evolutionary radiation in early land plants.
Download or read book The Early Devonian Posongchong Flora of Yunnan written by Shougang Hao and published by . This book was released on 2013 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plants Invade the Land written by Patricia G. Gensel and published by Columbia University Press. This book was released on 2001 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: What do we now know about the origins of plants on land, from an evolutionary and an environmental perspective? The essays in this collection present a synthesis of our present state of knowledge, integrating current information in paleobotany with physical, chemical, and geological data.
Download or read book Plant Life in the Devonian written by Patricia G. Gensel and published by Greenwood. This book was released on 1984 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Earth History and Palaeogeography written by Trond H. Torsvik and published by Cambridge University Press. This book was released on 2017 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a complete Phanerozoic story of palaeogeography, using new and detailed full-colour maps, to link surface and deep-Earth processes.
Download or read book Introduction to Plant Fossils written by Christopher J. Cleal and published by Cambridge University Press. This book was released on 2019-06-27 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offers a practical guide for the non-specialist on studying and learning from plant fossils to understand the evolution of vegetation on Earth.
Download or read book Early Palaeozoic Biogeography and Palaeogeography written by D.A.T. Harper and published by Geological Society of London. This book was released on 2014-01-27 with total page 485 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Early Palaeozoic was a critical interval in the evolution of marine life on our planet. Through a window of some 120 million years, the Cambrian Explosion, Great Ordovician Biodiversification Event, End Ordovician Extinction and the subsequent Silurian Recovery established a steep trajectory of increasing marine biodiversity that started in the Late Proterozoic and continued into the Devonian. Biogeography is a key property of virtually all organisms; their distributional ranges, mapped out on a mosaic of changing palaeogeography, have played important roles in modulating the diversity and evolution of marine life. This Memoir first introduces the content, some of the concepts involved in describing and interpreting palaeobiogeography, and the changing Early Palaeozoic geography is illustrated through a series of time slices. The subsequent 26 chapters, compiled by some 130 authors from over 20 countries, describe and analyse distributional and in many cases diversity data for all the major biotic groups plotted on current palaeogeographic maps. Nearly a quarter of a century after the publication of the ‘Green Book’ (Geological Society, London, Memoir12, edited by McKerrow and Scotese), improved stratigraphic and taxonomic data together with more accurate, digitized palaeogeographic maps, have confirmed the central role of palaeobiogeography in understanding the evolution of Early Palaeozoic ecosystems and their biotas.
Download or read book Palaeobiology and Geobiology of Fossil Lagerst tten through Earth History written by Reitner, Joachim and published by Universitätsverlag Göttingen. This book was released on 2013-09-06 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exceptionally preserved fossils from Fossil Lagerstätten contribute greatly to resolving details on the history of life on Earth. For the first time, the “Paläontologische Gesellschaft” (PalGes) and the “Palaeontological Society of China” (PSC) combined forces to jointly present an international conference aimed to highlight and encourage the study of exceptionally well-preserved fossil sites worldwide. The conference focused on all aspects of palaeontology and geobiology, also incorporating related fields like biogeochemistry, biology, sedimentology and stratigraphy. The present volume contains the abstracts of more than 275 lectures and posters presented during the joint international conference “Palaeobiology & Geobiology of Fossil Lagerstätten through Earth History”. This year’s conference was held at the northern campus of the Georg-August University in Göttingen, Germany, from September 23-27, 2013. More than three hundred palaeontologists, biologists, geologists and other scientists and researchers from sixteen countries, mainly from Germany and the P. R. of China, participated.
Download or read book The Diversity and Evolution of Plants written by Lorentz C. Pearson and published by CRC Press. This book was released on 2023-08-11 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: This exciting new textbook examines the concepts of evolution as the underlying cause of the rich diversity of life on earth-and our danger of losing that rich diversity. Written as a college textbook, The Diversity and Evolution of Plants introduces the great variety of life during past ages, manifested by the fossil record, using a new natural classification system. It begins in the Proterozoic Era, when bacteria and bluegreen algae first appeared, and continues through the explosions of new marine forms in the Helikian and Hadrynian Periods, land plants in the Devonian, and flowering plants in the Cretaceous. Following an introduction, the three subkingdoms of plants are discussed. Each chapter covers one of the eleven divisions of plants and begins with an interesting vignette of a plant typical of that division. A section on each of the classes within the division follows. Each section describes where the groups of plants are found and their distinguishing features. Discussions in each section include phylogeny and classification, general morphology, and physiology, ecological significance, economic uses, and potential for research. Suggested readings and student exercises are found at the end of each chapter.
Download or read book The Evolution of Plant Physiology written by Alan R. Hemsley and published by Elsevier. This book was released on 2004-02-05 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coupled with biomechanical data, organic geochemistry and cladistic analyses utilizing abundant genetic data, scientific studies are revealing new facets of how plants have evolved over time. This collection of papers examines these early stages of plant physiology evolution by describing the initial physiological adaptations necessary for survival as upright structures in a dry, terrestrial environment. The Evolution of Plant Physiology also encompasses physiology in its broadest sense to include biochemistry, histology, mechanics, development, growth, reproduction and with an emphasis on the interplay between physiology, development and plant evolution. Contributions from leading neo- and palaeo-botanists from the Linnean Society Focus on how evolution shaped photosynthesis, respiration, reproduction and metabolism. Coverage of the effects of specific evolutionary forces -- variations in water and nutrient availability, grazing pressure, and other environmental variables
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 Applications of Non Pollen Palynomorphs written by F. Marret and published by Geological Society of London. This book was released on 2021-10-29 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: This long-awaited book about non-pollen palynomorphs (NPPs) aims to cover gaps in our knowledge of these abundant but understudied palynological remains. NPPs, such as fungal spores, testate amoebae, dinoflagellate cysts, acritarchs and animal remains, are routinely recovered from palynological preparations of marine or terrestrial material, from Proterozoic to recent geological times. This book gives the reader a comprehensive overview of the different types of NPPs, with examples from diverse time periods and environments. It provides guidance on sample preparation to maximize the recovery of these NPPs, detailed information on their diversity and ecological affinity, clarification on the nomenclature and demonstrates their value as environmental indicators. This volume will become the reference guide for any student, academic or practitioner interested in everything else in their palynological preparations.
Download or read book Wetlands Through Time written by Stephen F. Greb and published by Geological Society of America. This book was released on 2006-01-01 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution of Fossil Ecosystems written by Paul Selden and published by CRC Press. This book was released on 2012-03-15 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evolution of Fossil Ecosystems describes all of the main Fossil Lagerstätten (sites of exceptional fossil preservation) from around the world in a chronological order. It covers the history of research, stratigraphy and taphonomy, main faunal and floral elements, and the palaeoecology of each site and gives a comparison with coeval sites around the w
Download or read book Planet of the Bugs written by Scott Richard Shaw and published by University of Chicago Press. This book was released on 2014-09-11 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chronicles the evolution of insects and explains how evolutionary innovations have enabled them to disperse widely, occupy narrow niches, and survive global catastrophes. --Publisher's description.
Download or read book ORIGIN EARLY DIVERS LAND PLANT PB written by KENRICK PAUL and published by Smithsonian Institution Scholarly Press. This book was released on 1997-08-17 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive application of cladistics to the massive body of data on both living and fossil plants, this book clarifies phylogenetic patterns within and among basal groups of land plants. In its analysis of the patterns and processes underlying the origin of land plants, the book sheds light on central questions surrounding the initial assembly of terrestrial ecosystems.
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.
