Download or read book A New Llandovery early Silurian Conodont Biozonation and Conodonts from the Becscie Merrimack and Gun River Formations Anticosti Island Qu bec written by Shunxin Zhang and published by . This book was released on 2002 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conodonts of the Jupiter and Chicotte Formations Lower Silurian Anticosti Island Qu bec written by Teruya Uyeno and published by . This book was released on 1983 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The results of this study allow more precise correlations to be made with the classic Lower Silurian rocks of the Welsh Borderland in Great Britain, and will also facilitate making closer correlations between strata of this age in other sedimentary basins in Canada and elsewhere. Accurate dating of rocks is of great importance in assessing the hydrocarbon and other mineral potential of sedimentary basins." --
Download or read book Silurian Conodonts from Wills Mountain Anticline Virginia West Virginia and Maryland written by Charles T. Helfrich and published by Geological Society of America. This book was released on 1975 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conodonts from Ordovician Silurian Boundary Strata Whittaker Formation Mackenzie Mountains Northwest Territories written by Godfrey S. Nowlan and published by Geological Survey of Canada. This book was released on 1988 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The taxonomic work provides detailed descriptions and illustrations of almost fifty species belonging to twenty-three genera. One new genus and five new species are erected. The resulting taxonomic framework is used to provide a correlation with strata of this age in other sedimentary basins in Canada and elsewhere.
Download or read book Silurian Lower Devonian Conodont Sequence in the Roberts Mountains Formation of Central Nevada written by Gilbert Klapper and published by . This book was released on 1974 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silurian Lower Devonian Conodont Sequence in the Roberts Mountains Formation of Central Nevada written by Gilbert Klapper and published by . This book was released on with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stratigraphy and Conodonts of Upper Silurian and Lower Devonian Rocks in the Environs of the Boothia Uplift Canadian Arctic Archipelago written by R. Thorsteinsson and published by Geological Survey of Canada. This book was released on 1980 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Boothia Uplift is a major structural feature that extends north from Boothia Peninsula to the northwestern extremity of Devon Island. On Somerset Island and Boothia Peninsula it consists of Precambrian crystalline rocks and Proterozoic sediments that are flanked by Cambrian to Lower Devonian platform-type sedimentary rocks. This report deals with strata of Late Silurian to Early Devonian age, the time of the principal crustal movements that produced the Uplift." --
Download or read book Thermal Maturation of Paleozoic Strata in Eastern Canada from Conodont Colour Alteration Index CAI Data with Implications for Burial History Tectonic Evolution Hotspot Tracks and Mineral and Hydrocarbon Exploration written by Godfrey S. Nowlan and published by Ottawa, Canada : Geological Survey of Canada. This book was released on 1987 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work provides an important insight into the structural development of the Appalachian Orogen, and also serves as a guide to thermal maturity of strata, a property that is important in hydrocarbon and mineral exploration.
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.
Download or read book Correlation Chart and Biostratigraphy of the Silurian Rocks of Canada written by B. S. Norford and published by . This book was released on 1997 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Catalogues of the Silurian Fossils of the Island of Anticosti written by Geological Survey of Canada and published by . This book was released on 1866 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Middle Ordovician to Silurian Wenlock Conodont Taxonomy and Biostratigraphy from Basinal Strata of the Road River Formation in the Richardson Mountains Northern Yukon Territory microform written by Alexander D. McCracken and published by National Library of Canada. This book was released on 1985 with total page 1152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rare conodont-bearing carbonates, in contrast to common graptolitic shale demand that the systemic boundary in Yukon clastic facies be defined using graptolites.
Download or read book Late Mississippian and Early Pennsylvanian Conodonts Arkansas and Oklahoma written by Harold Richard Lane and published by Geological Society of America. This book was released on 1974 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Silurian of the Great Lakes Region written by Rodney Watkins and published by . This book was released on 1974 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CONODONTS FROM THE CARNIAN NORIAN BOUNDARY UPPER TRIASSIC OF BLACK BEAR RIDGE NORTHEASTERN BRITISH COLUMBIA CANADA written by MICHAEL J. ORCHARD and published by New Mexico Museum of Natural History and Science. This book was released on 2014 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
