Download or read book Cricetid and Zapodid Rodents from the Valentine Formation of Knox County Nebraska written by William W. Korth and published by . This book was released on 1980 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geomyoid Rodents from the Valentine Formation of Knox County Nebraska written by William W. Korth and published by . This book was released on 1979 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Tertiary Record of Rodents in North America written by William W. Korth and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nearly half of the known species of mammals alive today (more than 1600) are rodents or "gnawing mammals" (Nowak and Paradiso, 1983). The diversity of rodents is greater than that of any other order of mammals. Thus, it is not surprising that the fossil record of this order is extensive and fossil material of rodents from the Tertiary is known from all continents except Antarctica and Australia. The purpose of this book is to compile the published knowledge on fossil rodents from North America and present it in a way that is accessible to paleontologists and mammalogists interested in evolutionary studies of ro dents. The literature on fossil rodents is widely scattered between journals on paleontology and mammalogy and in-house publications of museums and universities. Currently, there is no single source that offers ready access to the literature on a specific family of rodents and its fossil history. This work is presented as a reference text that can be useful to specialists in rodents (fossil or recent) as weIl as mammalian paleontologists working on whole faunas. Because the diversity of rodents in the world is essentially limitless, any monograph that included all fossil rodents would similarly be limitless. Hence, this book is limited to the re cord of Tertiary rodents of North America. The several species of South American (caviomorph) rodents that invaded North America near the end of the Tertiary are also not included in this text.
Download or read book Wildlife Review written by and published by . This book was released on 1980 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rodent and Lagomorph Families of Asian Origins and Diversification written by Yukimitsu Tomida and published by . This book was released on 1994 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Mammals of Asia written by Xiaoming Wang and published by Columbia University Press. This book was released on 2013 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book is on the emergence of mammals in Asia, based largely on new fossil finds throughout Asia and cutting-edge biostratigraphic and geochemical methods of dating the fossils and their geological substrate"--Provided by publisher.
Download or read book Tertiary Stratigraphy and the Frick Collection of Fossil Vertebrates from North central Nebraska written by Morris F. Skinner and published by . This book was released on 1984 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Late Tertiary Valentine and Ash Hollow formations of the Ogallala Group in north-central Nebraska contain two previously unnamed fossiliferous ash-bearing members. These, with four published members, provide a startigraphic framework for large collections of fossils in the Frick Collection in AMNH and other institutions. The Cornell Dam Member (new) in the basal Valentine Formation has salient lithic features and geologic relationships not found in other members of the Valentine. Basal channel sand disconformably overlying the Rosebud Formation contains macro- and microinvertebrate fossils (Norden Fauna, new) that also show the ecological and faunal distinction of this member. Fission track dates suggest that Valentine sediments spanned one and perhaps three million years. The Merritt Dam Member (new) of late Clarendonian to late Hemphillian age, disconformably overlies the Cap Rock Member of the referred Ash Hollow Formation. The Merritt Dam Member is less cliff forming than the Cap Rock Member, contains more volcanic ash and local channel and pond sediments. Tectonic readjustment caused deep channel erosion through the Ogallala into Arikaree rocks on the east flank of the Chadron Arch and eastward into the Cap Rock Member and the Valentine Formation. Sediments filling some of these channels contain vertebrate fossils overlain by vitric tuffs with a fission track date of 9.5 [+ or -] 0.8 Ma. The paleogeomorphology of the Ogallala Group and its depositonal framework is the product of overlapping alluvial fans of at least three paleodrainage systems which filled pre-existing valleys and spread sediments over a vast Great Plains area in Nebraska and South Dakota. In north-central Nebraska widespread aggradation and two short periods of degradation occurred during the Valentinian. Gradual aggradation during the early Clarendonian was followed by intermittent aggradation and degradation during the late Clarendonian and Hemphillian. The stratigraphic allocation and history of 98 collecting localities and documentation of 90 holotypes of fossil vertebrates and 13 plants provide a firm base for continued research. The prinipal aquifer in the Ogallala is the Crookston Bridge Member of the Valentine Formation"--P. 217.
Download or read book Occasional Papers of the Museum of Natural History the University of Kansas written by and published by . This book was released on 1992 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Occasional Papers of the Museum of Natural History the University of Kansas written by William Edward Duellman and published by . This book was released on 1971 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Annals of the Carnegie Museum written by Carnegie Museum and published by . This book was released on 1997 with total page 916 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Mammalogy written by and published by . This book was released on 1991 with total page 920 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Occasional Papers of the Natural History Museum written by and published by . This book was released on 1971 with total page 902 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1976 with total page 826 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography and Index of Geology written by and published by . This book was released on 1982 with total page 1562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recent Literature of Mammalogy written by and published by . This book was released on 1980 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supplement for Feb. 1974 includes Proposed revisions of society bylaws and rules.
Download or read book Annual Report of the Director written by Carnegie Institute and published by . This book was released on 1980 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geologic Framework and Regional Hydrology written by Robert Francis Diffendal and published by . This book was released on 1990 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
