Middle Ordovician Trilobites From Lower Head Western Newfoundland
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Author | : Harry Blackmore Whittington |
Publisher | : |
Total Pages | : 118 |
Release | : 1963 |
Genre | : Paleontology |
ISBN | : |
Download Middle Ordovician Trilobites from Lower Head, Western Newfoundland Book in PDF, Epub and Kindle
Author | : Reuben James Ross |
Publisher | : |
Total Pages | : 80 |
Release | : 1967 |
Genre | : Brachiopoda, Fossil |
ISBN | : |
Download Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges, Western United States Book in PDF, Epub and Kindle
Species of 14 genera of brachiopods and 32 genera of trilobites are described to support stratigraphic conclusions presented in Geological Survey Bulletin 1180-C.
Author | : Reuben James Ross |
Publisher | : |
Total Pages | : 166 |
Release | : 1970 |
Genre | : Brachiopoda, Fossil |
ISBN | : |
Download Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada Book in PDF, Epub and Kindle
Additional title page description: A description of 79 species of 58 genera of brachiopods and trilobites in the context of seven strategically located stratigraphic sections. Interpretations of Middle Ordovician stratigraphy in central Nevada are modified.
Author | : Richard A. Fortey |
Publisher | : John Wiley & Sons |
Total Pages | : 263 |
Release | : 2013-10-22 |
Genre | : Science |
ISBN | : 1118850629 |
Download Lower Ordovician trilobites of the Kirtonryggen Formation, Spitsbergen Book in PDF, Epub and Kindle
This monograph describes early Ordovician (Ibexian: Tremadocian–early Floian) trilobites from Northern Spitsbergen from the section through the Kirtonryggen Formation adjacent to Hinlopen Strait. The Formation is divided into three Members, each with distinct trilobites collectively representing the fullest known succession from the Bathyurid biofacies of the eastern Laurentian carbonate platform. Previous research on the Ordovician of Spitsbergen is summarised and correlations with similar faunas previously described from Canada, Greenland, western Newfoundland, Vermont–New York State, Oklahoma and Missouri are discussed. Taxonomic problems are discussed in detail leading to the recognition of 53 species, of which 15 are new, belonging to 31 genera including four new. Twenty-four taxa are described under open or tentative nomenclature. The lower Member yields the earliest known occurrences of the Illaenoidea, Proetoidea and Scutelluoidea, supporting the hypotheses relating the origin of new major clades to inshore habitats.
Author | : Reuben James Ross |
Publisher | : |
Total Pages | : 108 |
Release | : 1972 |
Genre | : Articulata, Fossil |
ISBN | : |
Download Fossils from the Ordovician Bioherm at Meiklejohn Peak, Nevada Book in PDF, Epub and Kindle
Additional title page description: Distribution of fossils in the biotherm and in flanking beds is documented. Species of 12 genera of brachiopods and 20 genera of trilobites are described. They compare closely with contemporary forms in Quebec and western Newfoundland.
Author | : Rolf Ludvigsen |
Publisher | : Ottawa, Canada : Energy, Mines and Resources Canada |
Total Pages | : 112 |
Release | : 1979 |
Genre | : Geology |
ISBN | : |
Download A Trilobite Zonation of Middle Ordovician Rocks, Southwestern District of Mackenzie Book in PDF, Epub and Kindle
Author | : Harry Blackmore Whittington |
Publisher | : |
Total Pages | : 441 |
Release | : 1965 |
Genre | : Paleontology |
ISBN | : |
Download Trilobites of the Ordovician Table Head Formation, Western Newfoundland Book in PDF, Epub and Kindle
Author | : Ian Knight |
Publisher | : |
Total Pages | : 72 |
Release | : 1988 |
Genre | : Geology |
ISBN | : |
Download Stratigraphy of the Lower to Lower Middle Ordovician St. George Group, Western Newfoundland Book in PDF, Epub and Kindle
The St. George Group is an approximately 500-m-thick sequence of carbonate rock in western Newfoundland. This report defines and explains the stratigraphy of these Lower Ordovician rocks, including the regional geology and geography, their age, and a review of work already done in the area.
Author | : Barry D. Webby |
Publisher | : Columbia University Press |
Total Pages | : 497 |
Release | : 2004-04-14 |
Genre | : Science |
ISBN | : 0231501633 |
Download The Great Ordovician Biodiversification Event Book in PDF, Epub and Kindle
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.
Author | : William Thornton Dean |
Publisher | : |
Total Pages | : 64 |
Release | : 1979 |
Genre | : Paleontology |
ISBN | : |
Download Trilobites from the Long Point Group (Ordovician), Port Au Port Peninsula, Southwestern Newfoundland Book in PDF, Epub and Kindle