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Author : Frank Springer
Publisher :
ISBN 13 :
Total Pages : 328 pages
Book Rating : 4.F/5 ( download)
Download or read book American Silurian Crinoids written by Frank Springer and published by . This book was released on 1926 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frank Springer
Publisher : Franklin Classics
ISBN 13 : 9780343128128
Total Pages : 0 pages
Book Rating : 4.1/5 (281 download)
Download or read book American Silurian Crinoids written by Frank Springer and published by Franklin Classics. This book was released on 2018-10-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book American Silurian crinoids written by and published by . This book was released on 1926 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James D. Eckert
Publisher :
ISBN 13 : 9780877104520
Total Pages : 88 pages
Book Rating : 4.1/5 (45 download)
Download or read book Early Silurian (Llandovery) Crinoids from the Lower Clinton Group, Western New York State written by James D. Eckert and published by . This book was released on 2001 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Early Silurian (Llandovery) crinoids have been poorly known. The present paper describes 26 species and six unassigned columnal taxa of Early Silurian crinoids on the basis of new and well preserved fossils from the lower Clinton Group of western New York. The new material, comprising eighteen genera, and unclassified skeletal material, spans the late middle Llandovery to the latest Llandovery and has been derived from several lithostratigraphic units. The Reynales Formation (Acronian) contains the following new genera: Dynamocrinus, Thaerocrinus, Haptocrinus, and Prolixocrinus: new species include Dynamocrinus robusts, Thaerocrinus crenatus, Haptocrinus calvatus, Prolixocrinus nodocaudis and Macrostylocrinus sp. Two species of disparid Eomyelodactylus, E. sparteus Eckert and E. uniformis Eckert, and one unusual camerate Stipatocrinus hulveri Eckert and Brett, have been previously described from the Reynales Limestone. Compsocrinus relictus, Dendrocrinus ursae, and an unidentified camerate occur in the laterally equivalent Bear Creek Shale. New taxa from the Wolcott Limestone (lower Telychian) include the Atalocrinacea, new superfamily: Atalocrinidae, Callistocrinidae, and Anisocrinidae, new families: Callistocrinus, Tormosocrinus, Atalocrinus, Aclistocrinus, Kyphosocrinus, and Scapanocrinus, all new genera: and the species Callistocrinus tesselatus, Tormosocrinus furberi, Atalocrinus arctus, Aclistocrinus capistratus, Kyphosocrinus tetreaulti, Scapanocrinus muricatus, Myelodactylus linae, Euspirocrinus wolcottense, Dendrocrinus aphelos, D. bactronodosus, Haptocrinus sp., ?anisocrinid sp., and an unidentified flexible crinoid. Protaxocrinus anellus n. sp., and five unidentifed columnal types occur in the upper Telychian Willowvale Shale. Taxonomic revisions also necessitate reassignments of three previously described taxa. The disparid Macnamaratylus Bolton is synonymized with Eumelodactylus, the flexible crinoid Clidochirus americanus Springer is reassigned to Prolixocrinus n. gen. and the cladid genus Quinquecaudex Brower and Veinus, 1981, is synonymized with Dendrocrinus. The erroneous species, Glyptocrinus plumosus Hall is reviewed: the cotype specimens in part represent the cirral column of a myelodactylid disparid crionid, here tentatively assigned to Eomeyelodatylus (E. ? plumosus (Hall)); the remaining material consists of columnals and pluricolumnals probably belonging to Haptocrinus. Physically stressed, uncrowed environments of the Early Silurian in western New York were characterized by low diversity crinoid assemblages and provided a refuge for relictual Ordovician taxa that became extinct in the late Llandovery. Diverse assemblages of crinoids dominated by Wenlock precursors inhabited mixed carbonate-siliciclastic regimes distal to shoals. Early silurian crinoids of the Clinton Group are highly endemic in marked contrast to the generally low provincialism of other taxa (e.g., brachiopods) during this interval.
Author : Christina Franzén
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (35 download)
Download or read book Ecology and Taxonomy of Silurian Crinoids from Gotland written by Christina Franzén and published by . This book was released on 1983 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frank Springer
Publisher : Nabu Press
ISBN 13 : 9781295509843
Total Pages : 324 pages
Book Rating : 4.5/5 (98 download)
Download or read book American Silurian Crinoids - Primary Source Edition written by Frank Springer and published by Nabu Press. This book was released on 2014-01-13 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Author : Frank Springer
Publisher : Forgotten Books
ISBN 13 : 9780656220625
Total Pages : 78 pages
Book Rating : 4.2/5 (26 download)
Download or read book Some New American Fossil Crinoids (Classic Reprint) written by Frank Springer and published by Forgotten Books. This book was released on 2018-02-10 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Some New American Fossil Crinoids This hitherto exclusively Silurian genus was proposed by Phillips without definition, \but upon two species, D. Decadactylus and D. Icosidactylus, of which he gave a brief description and figures by which they can be easily recognized7 as familiar forms at Dudley, England; specimens of them are found in the principal museums, under Phillips's names. From these species the generic characters are readily determinable, but were not correctly understood untilmemoirs of the Museum of comparative Zoclogg AT harvard college. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author : Hans Hess
Publisher : Cambridge University Press
ISBN 13 : 9780521524407
Total Pages : 310 pages
Book Rating : 4.5/5 (244 download)
Download or read book Fossil Crinoids written by Hans Hess and published by Cambridge University Press. This book was released on 2002 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crinoids have graced the oceans for more than 500 million years. Among the most attractive fossils, crinoids had a key role in the ecology of marine communities through much of the fossil record, and their remains are prominent rock forming constituents of many limestones. This is the first comprehensive volume to bring together their form and function, classification, evolutionary history, occurrence, preservation and ecology. The main part of the book is devoted to assemblages of intact fossil crinoids, which are described in their geological setting in twenty-three chapters ranging from the Ordovician to the Tertiary. The final chapter deals with living sea lilies and feather stars. The volume is exquisitely illustrated with abundant photographs and line drawings of crinoids from sites around the world. This authoritative account recreates a fascinating picture of fossil crinoids for paleontologists, geologists, evolutionary and marine biologists, ecologists and amateur fossil collectors.
Author : Raymond Cecil Moore
Publisher : Geological Society of America
ISBN 13 : 081372046X
Total Pages : 182 pages
Book Rating : 4.8/5 (137 download)
Download or read book Evolution and Classification of Paleozoic Crinoids written by Raymond Cecil Moore and published by Geological Society of America. This book was released on 1943 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Winifred Goldring
Publisher :
ISBN 13 :
Total Pages : 812 pages
Book Rating : 4.3/5 (243 download)
Download or read book The Devonian Crinoids of the State of New York written by Winifred Goldring and published by . This book was released on 1923 with total page 812 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James D. Eckert
Publisher : Forgotten Books
ISBN 13 : 9780428548902
Total Pages : 108 pages
Book Rating : 4.5/5 (489 download)
Download or read book Early Silurian (Llandovery) Crinoids From the Lower Clinton Group, Western New York State (Classic Reprint) written by James D. Eckert and published by Forgotten Books. This book was released on 2018-01-09 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Early Silurian (Llandovery) Crinoids From the Lower Clinton Group, Western New York State In the following sections, the taphonomy of several echinoderm assemblages discovered in this study is evaluated, together with paleoecology in order to un derstand these occurrences and depositional environ ments that influenced their preservation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Author : William Arthur Parks
Publisher :
ISBN 13 :
Total Pages : 348 pages
Book Rating : 4.F/5 ( download)
Download or read book Silurian Stromatoporoids of America written by William Arthur Parks and published by . This book was released on 1909 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : James D. Eckert
Publisher : Life Sciences Contributions
ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.F/5 ( download)
Download or read book Early Llandovery Crinoids and Stelleroids from the Cataract Group (Lower Silurian) in Southern Ontario, Canada written by James D. Eckert and published by Life Sciences Contributions. This book was released on 1984 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. K. Donovan
Publisher :
ISBN 13 :
Total Pages : 76 pages
Book Rating : 4.F/5 ( download)
Download or read book The British Silurian Crinoidea written by S. K. Donovan and published by . This book was released on 2009 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 732 pages
Book Rating : 4.:/5 (334 download)
Download or read book Bulletin of the Geological Society of America written by and published by . This book was released on 1928 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Trond H. Torsvik
Publisher : Cambridge University Press
ISBN 13 : 1107105323
Total Pages : 329 pages
Book Rating : 4.1/5 (71 download)
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.
Author : William I. Ausich
Publisher : Indiana University Press
ISBN 13 : 0253351286
Total Pages : 474 pages
Book Rating : 4.2/5 (533 download)
Download or read book Echinoderm Paleobiology written by William I. Ausich and published by Indiana University Press. This book was released on 2008-07-18 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dominant faunal elements in shallow Paleozoic oceans, echinoderms are important to understanding these marine ecosystems. Echinoderms (which include such animals as sea stars, crinoids or sea lilies, sea urchins, sand dollars, and sea cucumbers) have left a rich and, for science, extremely useful fossil record. For various reasons, they provide the ideal source for answers to the questions that will help us develop a more complete understanding of global environmental and biodiversity changes. This volume highlights the modern study of fossil echinoderms and is organized into five parts: echinoderm paleoecology, functional morphology, and paleoecology; evolutionary paleoecology; morphology for refined phylogenetic studies; innovative applications of data encoded in echinoderms; and information on new crinoid data sets.
