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Acritarchs of the Lime Creek Formation (Upper Devonian) of Iowa

Acritarchs of the Lime Creek Formation (Upper Devonian) of Iowa PDF Author: Roy Leo Newport
Publisher:
ISBN:
Category : Acritarchs
Languages : en
Pages : 136

Book Description


Acritarchs of the Lime Creek Formation (Upper Devonian) of Iowa

Acritarchs of the Lime Creek Formation (Upper Devonian) of Iowa PDF Author: Roy Leo Newport
Publisher:
ISBN:
Category : Acritarchs
Languages : en
Pages : 136

Book Description


Early Palaeozoic Biogeography and Palaeogeography

Early Palaeozoic Biogeography and Palaeogeography PDF Author: D.A.T. Harper
Publisher: 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.

Devonian Change

Devonian Change PDF Author: Peter Königshof
Publisher: Geological Society of London
ISBN: 9781862392731
Category : Science
Languages : en
Pages : 308

Book Description
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.

North-Central Section of the Geological Society of America

North-Central Section of the Geological Society of America PDF Author: Donald L. Biggs
Publisher: Geological Society of America
ISBN: 0813754038
Category : Science
Languages : en
Pages : 460

Book Description


A Catalog and Biostratigraphic Distribution of North American Devonian Acritarchs

A Catalog and Biostratigraphic Distribution of North American Devonian Acritarchs PDF Author: Reed Wicander
Publisher:
ISBN:
Category : Acritarchs
Languages : en
Pages : 150

Book Description


Devonian Climate, Sea Level and Evolutionary Events

Devonian Climate, Sea Level and Evolutionary Events PDF Author: R. T. Becker, 1st
Publisher: Geological Society of London
ISBN: 1862397341
Category : Science
Languages : en
Pages : 481

Book Description
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.

Centennial Field Guide

Centennial Field Guide PDF Author: Geological Society of America
Publisher: Boulder, Colo. : Geological Society of America
ISBN: 9780813754031
Category : Canada
Languages : en
Pages : 480

Book Description


Geology and Hydrogeology of Floyd-Mitchell Counties, North-central Iowa

Geology and Hydrogeology of Floyd-Mitchell Counties, North-central Iowa PDF Author: B. J. Bunker
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 124

Book Description


The Stratigraphy, Paleontology, Depositional and Diagenetic History of the Middle-upper Devonian Cedar Valley Group of Central and Eastern Iowa

The Stratigraphy, Paleontology, Depositional and Diagenetic History of the Middle-upper Devonian Cedar Valley Group of Central and Eastern Iowa PDF Author: Jed Day
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 208

Book Description


Palynostratigraphy and Paleoecology of the Faraghan Formation of Southeastern Iran

Palynostratigraphy and Paleoecology of the Faraghan Formation of Southeastern Iran PDF Author: Mohammad Ghavidel-Syooki
Publisher:
ISBN:
Category : Paleobotany
Languages : en
Pages : 594

Book Description