Graptolites from the Lower Ordovician Pogonip Group of Western Utah PDF Download
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Author: Lee F. Braithwaite
Publisher: Geological Society of America
ISBN: 0813721660
Category : History
Languages : en
Pages : 113
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Book Description
Author: Lee F. Braithwaite
Publisher: Geological Society of America
ISBN: 0813721660
Category : History
Languages : en
Pages : 113
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Book Description
Author: Lee F. Braithwaite
Publisher:
ISBN: 9780608135496
Category :
Languages : en
Pages : 112
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 260
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Book Description
Author: Stanley S. Beus
Publisher: Geological Society of America
ISBN: 081375402X
Category : Science
Languages : en
Pages : 483
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Book Description
Author: J. C. Gutiérrez-Marco
Publisher: IGME
ISBN: 9788478403455
Category : Fossils
Languages : en
Pages : 356
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Book Description
Author: Jörg Maletz
Publisher: John Wiley & Sons
ISBN: 1118515722
Category : Science
Languages : en
Pages : 270
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Book Description
The graptolites constitute one of the geologically most useful taxonomic groups of fossils for dating rock successions, understanding paleobiogeography and reconstructing plate tectonic configurations in the Lower Palaeozoic. Graptolites were largely planktic, marine organisms, and as one of the first groups that explored the expanses of the world’s oceans are vital for understanding Palaeozoic ecology. They are the best and often the only fossil group for dating Lower Palaeozoic rock successions precisely. Thousands of taxa have been described from all over the planet and are used for a wide variety of geological and palaeontological (biological) research topics. The recent recognition of the modern pterobranch Rhabdopleura as a living benthic graptolite enables a much better understanding and interpretation of the fossil Graptolithina. In the decades since the latest edition of the Graptolite Treatise, the enormous increase of knowledge on this group of organisms has never been synthesised in a compelling and coherent way, and information is scattered in scientific publications and difficult to sort through. This volume provides an up-to-date insight into research on graptolites. Such research has advanced considerably with the use of new methods of investigation and documentation. SEM investigation and research on ultrastructure of the tubaria has made it possible to compare extant and extinct taxa in much more detail. Cladistic interpretation of graptolite taxonomy and evolution has advanced the understanding of this group of organisms considerably in the last two decades, and has highlighted their importance in our understanding of evolutionary processes. This book will show graptolites, including their modern, living relatives, in a quite new and fascinating light, and will demonstrate the impact that the group has had on the evolution of the modern marine ecosystem. This book is aimed not only at earth scientists but also at biologists, ecologists and oceanographers. It is a readable and comprehensible volume for students at the MSc level, while remaining accessible to undergraduates and non-specialists seeking up-to-date information about this fascinating topic in palaeobiology.
Author: Ronald A. Johns
Publisher: NV Bureau of Mines & Geology
ISBN:
Category : Animals, Fossil
Languages : en
Pages : 200
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Book Description
Author: Otto H. Walliser
Publisher: Springer Science & Business Media
ISBN: 3642796346
Category : Science
Languages : en
Pages : 455
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Book Description
The existence of rapid and even catastrophic turnovers within the Phanerozoic ecosystems has been discussed controversially for more than 170 years. Since 1980 this discussion has become even more intensive after the hypothesis of Alvarez, explaining the end-Cretaceous mass extinction as the result of a huge asteroid impact on the Earth. This theory stimulated several thousand papers and is still controversial. The international research programme on "Global Biological Events in Earth History" attempts to bring the discussion back to the facts by using multidisciplinary investigations of the major Phanerozoic events. The results of an international group of experts are presented giving a wealth of information and a thorough discussion of the causes of the various global events.
Author: International Palaeontological Association. Graptolite Working Group. International Conference
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 296
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Book Description
Author: Lehi F. Hintze
Publisher: Utah Geological Survey
ISBN: 1557916926
Category : Science
Languages : en
Pages : 324
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Book Description
This bulletin serves not only to introduce the non-geologist to the rich geology of Millard County, but also to provide professional geologists with technical information on the stratigraphy, paleontology, and structural geology of the county. Millard County is unique among Utah’s counties in that it contains an exceptionally complete billion-year geologic record. This happened because until about 200 million years ago the area of present-day Millard County lay near sea level and was awash in shallow marine waters on a continental shelf upon which a stack of fossil-bearing strata more than 6 miles (10 km) thick slowly accumulated. This bulletin summarizes what is known about these strata, as well as younger rocks and surficial deposits in the county, and provides references to scientific papers that describe them in greater detail. Mountains North 30 x 60 (1:100,000-scale) quadrangles. These companion maps and this bulletin portray the geology of Millard County more completely and accurately than any previously published work.
