Download or read book A New Amphibious Tetrapod from the Greenlandic Eotriassic written by Hans C. Bjerring and published by Museum Tusculanum Press. This book was released on 1999 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mesozoic Biotas of Scandinavia and its Arctic Territories written by B.P. Kear and published by Geological Society of London. This book was released on 2016-06-02 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scandinavia and its Arctic territories of Svalbard and Greenland represent geographical regions with a long history of Mesozoic palaeontology. However the last few decades have witnessed a surge of new discoveries, especially from the famous Triassic and Late Jurassic Lagerstätten of East Greenland and Spitsbergen in the Svalbard Archipelago, together with the Late Cretaceous strata of southern Sweden and UNESCO World Heritage locality at Stevns Klint in Denmark; the latter recording one of the most complete terminal Mesozoic rock successions known globally. Collectively, these deposits encompass the spectrum of Mesozoic biotic evolution from the explosive radiation of marine faunas after the Permian-Triassic extinction and seminal specialization of amniotes for life in the sea, to the Late Triassic–Jurassic domination of the land by dinosaurs and Cretaceous development of modern terrestrial floras and marine ecosystems. This volume authored by leading experts in the field encapsulates key aspects of the latest research, and will provide a benchmark reference for future investigations into the Scandinavian Mesozoic world.
Download or read book Bulletin of the Geological Society of Denmark written by Dansk geologisk forening and published by . This book was released on 1999 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Meddelelser Om Gr nland written by and published by . This book was released on 1979 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Invites papers that contribute significantly to studies in Greenland within any of the fields of geoscience ...
Download or read book Records of the Australian Museum written by Australian Museum and published by . This book was released on 2003 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Vertebrate Paleontology written by and published by . This book was released on 2006 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Triassic Timescale written by Spencer G. Lucas and published by Geological Society of London. This book was released on 2010 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mesozoic Era begins with the approximately 50-million-year-long Triassic Period, a major juncture in Earth history when the vast Pangaean supercontinent completed its assembly and began its fragmentation, and the global biota diversified and modern-ized after the end-Permian mass extinction, the most extensive biotic decimation of the Phanerozoic. The temporal ordering of geological and biotic events during Triassic time thus is critical to the interpretation of some unique and pivotal events in Earth his-tory. This temporal ordering is mostly based on the Triassic time-scale, which has been developed and refined for nearly two centu-ries. This book reviews the state of the art of the Triassic timescale and includes comprehensive analyses of Triassic radio-isotopic ages, magnetostratigraphy, isotope-based and cyclostratigraphic correlations and timescale -relevant marine and non-marine bio-stratigraphy.
Download or read book Evolutionary Biology of Primitive Fishes written by R. E. Foreman and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: What, precisely, is a primitive fish? Most biologists would agree that the living cyclostomes, selachians, crossopterygians, etc. cannot be considered truly primitive. However, they and the fossil record have served to provide the information which forms the basis for speculation concerning the nature of the original vertebrates. This symposium of biologists from a variety of disciplines was called together to create collectively, from the best available current evidence, a picture of the probable line of evolution of the prototype primitive fishes. The symposium was designed to follow one that took place in Stockholm in 1967, convened for a similar purpose, with about the same number of participants. It is a matter of interest that almost the entire 1967 symposium (Nobel Symposium 4) dealt only with the hard tissues, whether fossil or modern. In charting the course of the present symposium it was felt that the intervening years have produced numerous lines of new evidence that could be employed in the same way that a navigator determines his position. Each field, be it adult morphology, geology, ecology, biochemistry, development or physiology, generates evidence that can be extrapolated backward from existing vertebrate forms and forward from invertebrate forms. If the intersect of only two lines of evidence produces a navigational "fix" of rather low reliability, then an intersect, however unfocussed, of multiple guidelines from more numerous disciplines might provide a better position from which to judge early vertebrate history.
Download or read book Special Papers in Palaeontology Smithian Early Triassic ammonoids from the Salt Range Pakistan and Spiti India written by Thomas Brühwiler and published by Wiley-Blackwell. This book was released on 2012-12-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume comprises 2 substantial papers that describe the Early Triassic (Smithian) ammonoids from the Salt Range (Pakistan) and the Spiti region of India. Ammonoids are abundant and well-preserved at many localities in these regions, and their highly resolved evolutionary succession is the key to stratigraphic correlation between the 2 areas, and with other Tethyan sequences such as those in southern Tibet and south China. Many new key genera and species are described.
Download or read book The Caledonide Orogen written by D. G. Gee and published by John Wiley & Sons. This book was released on 1985 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Patterns of evolution as illustrated by the fossil record written by and published by Elsevier. This book was released on 1977-01-15 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: Patterns of evolution, as illustrated by the fossil record
Download or read book Geology of Norway written by Olaf Holtedahl and published by . This book was released on 1960 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedia of paleoherpetology written by Oskar Kuhn and published by . This book was released on 1969 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Achanthostega Gunnari a Devonian Tetrapod from Greenland the Snout Palate and Ventral Parts of the Braincase With a Discussion of Their Siginificane written by J. A. Clark and published by Museum Tusculanum Press. This book was released on 1994 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Feeding written by Kurt Schwenk and published by Elsevier. This book was released on 2000-08-03 with total page 555 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the first four-legged vertebrates, called tetrapods, crept up along the shores of ancient primordial seas, feeding was among the most paramount of their concerns. Looking back into the mists of evolutionary time, fish-like ancestors can be seen transformed by natural selection and other evolutionary pressures into animals with feeding habitats as varied as an anteater and a whale. From frog to pheasant and salamander to snake, every lineage of tetrapods has evolved unique feeding anatomy and behavior.Similarities in widely divergent tetrapods vividly illustrate their shared common ancestry. At the same time, numerous differences between and among tetrapods document the power and majesty that comprises organismal evolutionary history.Feeding is a detailed survey of the varied ways that land vertebrates acquire food. The functional anatomy and the control of complex and dynamic structural components are recurrent themes of this volume. Luminaries in the discipline of feeding biology have joined forces to create a book certain to stimulate future studies of animal anatomy and behavior.
Download or read book Fins into Limbs written by Brian K. Hall and published by University of Chicago Press. This book was released on 2008-09-15 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long ago, fish fins evolved into the limbs of land vertebrates and tetrapods. During this transition, some elements of the fin were carried over while new features developed. Lizard limbs, bird wings, and human arms and legs are therefore all evolutionary modifications of the original tetrapod limb. A comprehensive look at the current state of research on fin and limb evolution and development, this volume addresses a wide range of subjects—including growth, structure, maintenance, function, and regeneration. Divided into sections on evolution, development, and transformations, the book begins with a historical introduction to the study of fins and limbs and goes on to consider the evolution of limbs into wings as well as adaptations associated with specialized modes of life, such as digging and burrowing. Fins into Limbs also discusses occasions when evolution appears to have been reversed—in whales, for example, whose front limbs became flippers when they reverted to the water—as well as situations in which limbs are lost, such as in snakes. With contributions from world-renowned researchers, Fins into Limbs will be a font for further investigations in the changing field of evolutionary developmental biology.
Download or read book Devonian Events and Correlations written by R. T. Becker and published by . This book was released on 2007 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Devonian was a peculiar period, characterized by simplified plate tectonic configurations, climatic overheating and widely flooded continents. This volume homours the lifetime stratigraphic achievements of Michael Robert House (1930-2002). Based on case studies, it shows how the combination of biostratigraphy, chemostratigraphy, magnetostratigraphy, sequence stratigraphy and event stratigraphy can contribute to a much deeper understanding of both regional and global environmental change.
