Download or read book Late Pliocene Early Pleistocene Ecologic Changes in the Arctic Ocean Borderland written by Charles Albert Repenning and published by . This book was released on 1992 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Palaeoentomology of the Kap Kobenhavn Formation a Pilo Pleistocene secquence in Peary Land North Greenland written by Jens Böcher and published by Museum Tusculanum Press. This book was released on 1995 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Late Cretaceous and Cenozoic History of North American Vegetation written by Alan Graham and published by Oxford University Press. This book was released on 1999-03-25 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a unique and integrated account of the history of North American vegetation and paleoenvironments over the past 70 million years. It includes discussions of the modern plant communities, causal factors for environmental change, biotic response, and methodologies. The history reveals a North American vegetation that is vast, immensely complex, and dynamic.
Download or read book U S Geological Survey Bulletin written by and published by . This book was released on 1983 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Allophaiomys and the Age of the Olyor Suite Krestovka Sections Yakutia written by Charles Albert Repenning and published by . This book was released on 1992 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microtine history indicates mosaic evolution and complex dispersal patterns around the Northern Hemisphere ; by reflecting this history and evaluating stage of population evolution, microtine biochronology can discriminate time periods as brief as 5,000 years.
Download or read book Nearshore Marine Paleoclimatic Regions Increasing Zoogeographic Provinciality Molluscan Extinctions and Paleoshorelines California written by Clarence A. Hall and published by Geological Society of America. This book was released on 2002 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approximately 3000 middle and late Cenozoic nearshore marine molluscan taxa from western California are assigned to six time periods, spanning ~25 m.y. In this interdisciplinary study, western California is palinspastically restored for each of the time periods by backsliding and back-rotating large fault blocks or crustal units. Marine fossil assemblages are assigned to nearshore paleoclimatic regions or water masses within palinspastically restored California. In addition, this volume reveals positive feedback mechanisms between paleolatitudinal changes in sea-surface paleotemperature gradients and changes in the diversity of marine mollusks along the California coast through time; defines "equable" based effective temperatures; and analyzes extinction rates among macroinvertebrate marine taxa from coastal California and the possible causes of these extinctions. The late Paleogene to Neogene faunas reflect an increase in faunal diversity related to strengthened temperature gradients, greater extremes in sea-surface temperatures, reduction in temperateness, and the development of an embayed California coastline.
Download or read book The Early Pleistocene latest Blancan earliest Irvingtonian Froman Ferry Fauna and History of the Glenns Ferry Formation Southwestern Idaho written by Charles Albert Repenning and published by . This book was released on 1995 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Publications of the U S Geological Survey written by and published by . This book was released on 1993 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Publications of the U S Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1993 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Biostratigraphy and Vertebrate Paleontology of the San Timoteo Badlands Southern California written by L. Barry Albright III and published by Univ of California Press. This book was released on 2000-03-08 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The author describes forty-two fossil taxa recovered during a study of the San Timoteo Badlands that used magnetobiostratigraphy to develop a temporal framework for addressing the tectonic evolution of southern California over the last 6 million years. For the Pliocene, small mammals are an effective means of correlating a magnetostratigraphy to the Geomagnetic Polarity Time Scale when radioisotopic dates are unobtainable.
Download or read book Biostratigraphy Age and Paleoenvironment of the Pliocene Beaufort Formation on Meighen Island Canadian Arctic Archipelago written by R.W. Barendregt and published by Geological Society of America. This book was released on 2021-09-24 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Meighen Island is a keystone site in the Neogene Canadian High Arctic, unique in the Beaufort Formation for its interbedded marine tongue. This volume is a comprehensive report on the biostratigraphy, age, and correlation of Meighen Island to other important Arctic localities from the standpoint of deposits exposed in the area of Bjaere Bay on the west side of the Island. The authors consider the diverse fossil macrofloras and pollen, the terrestrial and marine faunas, magnetostratigraphy, and amino acid racemization and put this site in the context of major changes in climate and geography during the Pliocene"--
Download or read book Advances in Vertebrate Paleontology and Geochronology written by Yukimitsu Tomida and published by . This book was released on 1998 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1993 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Mammals of Alaska written by Joseph A. Cook and published by University of Alaska Press. This book was released on 2010-03-15 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the polar bear and the gray wolf to the walrus and river otter, there are 115 species of mammals in Alaska that have never been fully catalogued until now. Biologists Joseph A. Cook and Stephen O. MacDonald have compiled here the first comprehensive guide to all of Alaska’s mammals, big and small, endearing and ferocious. Through extensive fieldwork and research the authors have produced a unique and authoritative reference. Detailed entries for each species include distribution and taxonomic information, status, habitat, and fossil history. Appendices include quick reference listings of mammal distribution by region, specimen locations, conservation status, and the incidence of Pleistocene mammals. The guide is generously illustrated with line drawings by Alaskan artist W. D. Berry and includes several maps indicating populations and locations of species. Mammals of Alaska will be an accessible, easy to use source for scholars and hobbyists alike.
Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1993 with total page 1786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Revision of North American Irvingtonian Early and Middle Pleistocene Microtine Rodent Biochronology written by Christopher Jackson Bell and published by . This book was released on 1997 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications of the Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1993 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
