The Cretaceous System of Southern South America
Title | The Cretaceous System of Southern South America PDF eBook |
Author | A. C. Riccardi |
Publisher | Geological Society of America |
Pages | 169 |
Release | 1988-01-01 |
Genre | Science |
ISBN | 0813711681 |
The Cretaceous System of Southern South America
Title | The Cretaceous System of Southern South America PDF eBook |
Author | A. C. Riccardi |
Publisher | |
Pages | 175 |
Release | |
Genre | |
ISBN | 9780608077178 |
Southern Hemisphere Palaeobiogeography of Triassic-Jurassic Marine Bivalves
Title | Southern Hemisphere Palaeobiogeography of Triassic-Jurassic Marine Bivalves PDF eBook |
Author | Susana E. Damborenea |
Publisher | Springer Science & Business Media |
Pages | 142 |
Release | 2012-09-27 |
Genre | Science |
ISBN | 9400750978 |
Palaeobiogeography is a complex subject which processes information provided by both Biology and Earth Sciences. It is conceptually and philosophically equivalent to neobiogeography. Nevertheless, its methods are somewhat different, since it is limited by the incompleteness of the fossil record. On the other hand, it has direct access to the time dimension, a key ingredient of organic evolution. Mesozoic benthonic mollusks, and especially bivalves, have a great potential for palaeobiogeographical analysis due to their commonly good preservation, abundance, diversity and high dispersion potential at the larval stage. From a merely descriptive point of view, the analysis of their distribution shows latitudinal gradients and distributional patterns, both at regional and global scales, which are the basis for the recognition of biochoremas or palaeobiogeographical units of different ranks. Moving forward towards a causal palaeobiogeography, these organisms also provide interesting insight into particular biogeographical questions, such as bipolarity and its origin. The evolution in time of the recognized biochoremas can be discussed in relation to palaeoclimas and extinction events. Finally, some of the results obtained from the analysis of the distribution of past bivalve biotas were even used to propose and discuss the development of marine corridors and argue about the distribution of continents in the past.
Ammonoid Paleobiology: From macroevolution to paleogeography
Title | Ammonoid Paleobiology: From macroevolution to paleogeography PDF eBook |
Author | Christian Klug |
Publisher | Springer |
Pages | 615 |
Release | 2015-07-22 |
Genre | Science |
ISBN | 9401796335 |
This two-volume work is a testament to the abiding interest and human fascination with ammonites. We offer a new model to explain the morphogenesis of septa and the shell, we explore their habitats by the content of stable isotopes in their shells, we discuss the origin and later evolution of this important clade, and we deliver hypotheses on its demise. The Ammonoidea produced a great number of species that can be used in biostratigraphy and possibly, this is the macrofossil group, which has been used the most for that purpose. Nevertheless, many aspects of their anatomy, mode of life, development or paleobiogeographic distribution are still poorly known. Themes treated are biostratigraphy, paleoecology, paleoenvironment, paleobiogeography, evolution, phylogeny, and ontogeny. Advances such as an explosion of new information about ammonites, new technologies such as isotopic analysis, tomography and virtual paleontology in general, as well as continuous discovery of new fossil finds have given us the opportunity to present a comprehensive and timely "state of the art" compilation. Moreover, it also points the way for future studies to further enhance our understanding of this endlessly fascinating group of organisms.
The Neuquén Basin, Argentina
Title | The Neuquén Basin, Argentina PDF eBook |
Author | Gonzalo D. Veiga |
Publisher | Geological Society of London |
Pages | 348 |
Release | 2005 |
Genre | Science |
ISBN | 9781862391901 |
The Neuquen Basin of northern Patagonia provides an excellent case study in basin analysis and sequence stratigraphy. The basin is one of the largest petroleum provinces in South America and includes a dramatic record of relative sea level changes as well as a unique and globally important palaeontological record. Understanding this region is also central to unravelling the history of the Andes. The latest developments in the study of the area have been combined in this volume to give an integrated series of case studies that document the structural, igneous, sedimentological and palaeontological history of the region from the Triassic to the Recent. This publication provides an introduction into this fascinating region as well as a resource that includes the most complete and up-to-date studies of the area.
The Vegetation of Antarctica through Geological Time
Title | The Vegetation of Antarctica through Geological Time PDF eBook |
Author | David J. Cantrill |
Publisher | Cambridge University Press |
Pages | 489 |
Release | 2012-11-22 |
Genre | Science |
ISBN | 113956028X |
The fossil history of plant life in Antarctica is central to our understanding of the evolution of vegetation through geological time and also plays a key role in reconstructing past configurations of the continents and associated climatic conditions. This book provides the only detailed overview of the development of Antarctic vegetation from the Devonian period to the present day, presenting Earth scientists with valuable insights into the break up of the ancient supercontinent of Gondwana. Details of specific floras and ecosystems are provided within the context of changing geological, geographical and environmental conditions, alongside comparisons with contemporaneous and modern ecosystems. The authors demonstrate how palaeobotany contributes to our understanding of the paleoenvironmental changes in the southern hemisphere during this period of Earth history. The book is a complete and up-to-date reference for researchers and students in Antarctic paleobotany and terrestrial paleoecology.
Ammonoid Paleobiology
Title | Ammonoid Paleobiology PDF eBook |
Author | Neil H. Landman |
Publisher | Springer Science & Business Media |
Pages | 857 |
Release | 2013-11-21 |
Genre | Science |
ISBN | 1475791534 |
Renowned researchers summarize the current knowledge on ammonoid paleobiology. The book begins with a description of the systematic position of the Ammonoidea within the Cephalopoda, providing the phylogenetic framework for the rest of the book. Following discussions include soft- and hard-part morphology of ammonoids, rate of growth and ontogeny, and taphonomy and ecology. Closing chapters explore the distribution of ammonoids in time and space as well as their extinction at the end of the Cretaceous. With its diverse viewpoints and new material, this resource will benefit researchers and graduate students in paleontology, marine biology, and evolutionary biology.