Download or read book New Reptiles and Stegocephalians from the Upper Triassic of Western Texas written by E. C. Case and published by Createspace Independent Publishing Platform. This book was released on 2016-03-11 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the INTRODUCTION. By aid of grants from the Carnegie Institution of Washington, the author has been for a number of years continuously at work upon the investigation of the vertebrate fauna of the Permo-Carboniferous beds of North America. The sudden and complete disappearance of this fauna (followed, after an interval represented by barren beds, by a highly specialized Upper Triassic fauna) has always been a tantalizing problem-the more so as the barren beds between the two widely different faunae are practically the same, in all the implications as to climate, mode of deposition, and terrestrial conditions, as the fossiliferous beds above and below. The interval of time represented by the barren beds is just the interval in which was developed the wonderful Permian and Triassic reptilian life of South Africa, Russia, and western Europe. A few very uncertain remains, briefly discussed in the section of this paper dealing with the Upper Triassic beds of western Texas, suggest the possibility that something of the Lower Triassic life of the Eastern Hemisphere reached North America. For these reasons the barren beds have been followed and searched with extreme care wherever they occur, but so far no trace of vertebrate life has been found in them. While engaged in such a search, the author learned of a small area in Crosby County, Texas, which has yielded a considerable amount of Upper Triassic vertebrate material, most of which is new. The present paper contains descriptions of this new and interesting fauna. The author takes this opportunity to thank the Carnegie Institution of Washington and its officers for the continued support which has made the work possible. Also, he wishes to acknowledge his obligation to Mr. Clifford Jones, manager of the Spur Farm Lands Company, and the other officers of the Swenson properties, for permission to go upon the lands under their control and for many acts of kindness and courtesy which rendered the task of collection much easier and contributed largely to the success of the work.
Download or read book New Reptiles and Stegocephalians from the Upper Triassic of Western Texas written by Ermine Cowles Case and published by . This book was released on 1922 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Global Triassic written by Spencer G. Lucas and published by New Mexico Museum of Natural History and Science. This book was released on 2007-01-01 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Reptiles and Stegocephalians from the Upper Triassic of Western Texas written by Ermine Cowles Case and published by . This book was released on 1922 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Reptiles and Stegocephalians from the Upper Triassic of Western Texas written by Ermine Cowles Case and published by . This book was released on 1922 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NEW REPTILES STEGOCEPHALIANS written by E. C. (Ermine Cowles) B. 1871 Case and published by Wentworth Press. This book was released on 2016-08-27 with total page 118 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 was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. 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. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. 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 New Reptiles and Stegocephalians From the Upper Triassic of Western Texas Classic Reprint written by E. C. Case and published by . This book was released on 2016-06-27 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from New Reptiles and Stegocephalians From the Upper Triassic of Western Texas On the east Side of the Staked Plains the lower beds are red sandy shales which may be traced from the Canadian River southward to where they disappear beneath the Cretaceous and younger deposits south of Big Springs, in Howard County. These beds shade downward indefinitely into the Double Mountain beds of the Fermo - Carboniferous. The author has repeatedly crossed the line, in every county of Texas where it lies, from the Canadian River on the north as far south as the Triassic appears, and has been unable to draw any line that can be used to separate the two formations. In passing from the towns Seymour, Vernon, Haskell, Anson, and Abilene westward to the Triassic at the base of the Plains, the same indefinite boundary is crossed. The red beds grow more shaly, and in general there is an increase in the amount of gypsum, which may occur in beds from a few inches to as much as 3 feet thick, or may be in fine seams running in all directions through the red sandy clay. The same condition is found in the breaks of the Canadian River and in the great canyons which penetrate into the Plains in Randall, Armstrong, Swisher, and Briscoe Counties. Similar conditions prevail wherever these two formations come together in New Mexico, Arizona, or Wyoming and the adjacent States. 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.
Download or read book Handbook of Paleoanthropology written by Winfried Henke and published by Springer Science & Business Media. This book was released on 2007-05-10 with total page 2057 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 3-volume handbook brings together contributions by the world ́s leading specialists that reflect the broad spectrum of modern palaeoanthropology, thus presenting an indispensable resource for professionals and students alike. Vol. 1 reviews principles, methods, and approaches, recounting recent advances and state-of-the-art knowledge in phylogenetic analysis, palaeoecology and evolutionary theory and philosophy. Vol. 2 examines primate origins, evolution, behaviour, and adaptive variety, emphasizing integration of fossil data with contemporary knowledge of the behaviour and ecology of living primates in natural environments. Vol. 3 deals with fossil and molecular evidence for the evolution of Homo sapiens and its fossil relatives.
Download or read book Late Permian Terrestrial Vertebrates U S A and U S S R written by Everett Claire Olson and published by . This book was released on 1962 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Ancestry of Modern Amphibia written by Theodore H. Eaton and published by Createspace Independent Pub. This book was released on 2015-02-28 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Ancestry of Modern Amphibia: A Review of the Evidence by Theodore H. Eaton.
Download or read book The Coal Measures Amphibia of North America written by Roy Lee Moodie and published by Good Press. This book was released on 2019-12-16 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Coal Measures Amphibia of North America" by Roy Lee Moodie. Published by Good Press. Good Press publishes a wide range of titles that encompasses every genre. From well-known classics & literary fiction and non-fiction to forgotten−or yet undiscovered gems−of world literature, we issue the books that need to be read. Each Good Press edition has been meticulously edited and formatted to boost readability for all e-readers and devices. Our goal is to produce eBooks that are user-friendly and accessible to everyone in a high-quality digital format.
Download or read book Biology and Evolution of Crocodylians written by Gordon Grigg and published by CSIRO PUBLISHING. This book was released on 2015-01-15 with total page 671 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology and Evolution of Crocodylians is a comprehensive review of current knowledge about the world's largest and most famous living reptiles. Gordon Grigg's authoritative and accessible text and David Kirshner's stunning interpretive artwork and colour photographs combine expertly in this contemporary celebration of crocodiles, alligators, caimans and gharials. This book showcases the skills and capabilities that allow crocodylians to live how and where they do. It covers the biology and ecology of the extant species, conservation issues, crocodylian–human interaction and the evolutionary history of the group, and includes a vast amount of new information; 25 per cent of 1100 cited publications have appeared since 2007. Richly illustrated with more than 500 colour photographs and black and white illustrations, this book will be a benchmark reference work for crocodylian biologists, herpetologists and vertebrate biologists for years to come.
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Download or read book Handbook of Paleoanthropology written by Winfried Henke and published by Springer. This book was released on 2007-05-10 with total page 2069 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 3-volume handbook brings together contributions by the world ́s leading specialists that reflect the broad spectrum of modern palaeoanthropology, thus presenting an indispensable resource for professionals and students alike. Vol. 1 reviews principles, methods, and approaches, recounting recent advances and state-of-the-art knowledge in phylogenetic analysis, palaeoecology and evolutionary theory and philosophy. Vol. 2 examines primate origins, evolution, behaviour, and adaptive variety, emphasizing integration of fossil data with contemporary knowledge of the behaviour and ecology of living primates in natural environments. Vol. 3 deals with fossil and molecular evidence for the evolution of Homo sapiens and its fossil relatives.
Download or read book The United States Catalog written by and published by . This book was released on 1950 with total page 1292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
