Author: Reed WicanderPublisher:
ISBN:
Category : Acritarchs
Languages : en
Pages : 46
Book Description
Stratigraphic and Paleogeographic Significance of an Upper Ordovician Acritarch Flora from the Maquoketa Shale, Northeastern Missouri, U.S.A.
Author: Reed WicanderPublisher:
ISBN:
Category : Acritarchs
Languages : en
Pages : 46
Book Description
Stratigraphic and Paleogeographic Significance of an Upper Ordovician Acritarch Flora from the Maquoketa Shale, Northeastern Missouri, USA
Author: Reed WicanderEarly Palaeozoic Biogeography and Palaeogeography
Author: D.A.T. HarperPublisher: Geological Society of London
ISBN: 1862393737
Category : Science
Languages : en
Pages : 485
Book Description
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.
The Great Ordovician Biodiversification Event
Author: Barry D. WebbyPublisher: Columbia University Press
ISBN: 0231501633
Category : Science
Languages : en
Pages : 497
Book Description
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.
Tectonic Evolution, Collision, and Seismicity of Southwest Asia
Author: Rasoul SorkhabiPublisher: Geological Society of America
ISBN: 0813725259
Category : Science
Languages : en
Pages : 684
Book Description
Southwest Asia is one of the most remarkable regions on Earth in terms of active faulting and folding, large-magnitude earthquakes, volcanic landscapes, petroliferous foreland basins, historical civilizations as well as geologic outcrops that display the protracted and complex 540 m.y. stratigraphic record of Earth's Phanerozoic Era. Emerged from the birth and demise of the Paleo-Tethys and Neo-Tethys oceans, southwest Asia is currently the locus of ongoing tectonic collision between the Eurasia-Arabia continental plates. The region is characterized by the high plateaus of Iran and Anatolia fringed by the lofty ranges of Zagros, Alborz, Caucasus, Taurus, and Pontic mountains; the region also includes the strategic marine domains of the Persian Gulf, Gulf of Oman, Caspian, and Mediterranean. This 19-chapter volume, published in honor of Manuel Berberian, a preeminent geologist from the region, brings together a wealth of new data, analyses, and frontier research on the geologic evolution, collisional tectonics, active deformation, and historical and modern seismicity of key areas in southwest Asia.
Palynological and Micropalaeontological Studies in Honour of Geoffrey Playford
Author: J. R. LauriePublisher:
ISBN:
Category : Science
Languages : en
Pages : 302
Book Description
Acritarchs and Prasinophyte Phycomata
Author: Geoffrey PlayfordPublisher:
ISBN:
Category : Acritarchs
Languages : en
Pages : 58
Book Description
Acta Universitatis Carolinae
Author: Bulletin
Author: The Geology of Northwest Libya
Author: Jamʻīyah al-Lībīyah li-ʻUlūm al-ArḍPublisher:
ISBN:
Category : Geology
Languages : en
Pages : 364
Book Description