Olenekian Early Triassic Stratigraphy And Fossil Assemblages In Northeastern Vietnam
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Olenekian Early Triassic Stratigraphy And Fossil Assemblages In Northeastern Vietnam
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Author : Yasunari Shigeta
language : en
Publisher:
Release Date : 2014
Olenekian Early Triassic Stratigraphy And Fossil Assemblages In Northeastern Vietnam written by Yasunari Shigeta and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Fossils categories.
Smithian Early Triassic Ammonoids From Crittenden Springs Elko County Nevada Taxonomy Biostratigraphy And Biogeography
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Author : JAMES F. JENKS
language : en
Publisher: New Mexico Museum of Natural History and Science
Release Date :
Smithian Early Triassic Ammonoids From Crittenden Springs Elko County Nevada Taxonomy Biostratigraphy And Biogeography written by JAMES F. JENKS and has been published by New Mexico Museum of Natural History and Science this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Ammonoid Paleobiology From Macroevolution To Paleogeography
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Author : Christian Klug
language : en
Publisher: Springer
Release Date : 2015-07-22
Ammonoid Paleobiology From Macroevolution To Paleogeography written by Christian Klug and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-22 with Science categories.
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.
Morphogenesis Environmental Stress And Reverse Evolution
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Author : Jean Guex
language : en
Publisher: Springer Nature
Release Date : 2020-07-23
Morphogenesis Environmental Stress And Reverse Evolution written by Jean Guex and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-07-23 with Science categories.
It is widely acknowledged that life has adapted to its environment, but the precise mechanism remains unknown since Natural Selection, Descent with Modification and Survival of the Fittest are metaphors that cannot be scientifically tested. In this unique text, invertebrate and vertebrate biologists illuminate the effects of physiologic stress on epigenetic responses in the process of evolutionary adaptation from unicellular organisms to invertebrates and vertebrates, respectively. This book offers a novel perspective on the mechanisms underlying evolution. Capacities for morphologic alterations and epigenetic adaptations subject to environmental stresses are demonstrated in both unicellular and multicellular organisms. Furthermore, the underlying cellular-molecular mechanisms that mediate stress for adaptation will be elucidated wherever possible. These include examples of ‘reverse evolution’ by Professor Guex for Ammonites and for mammals by Professor Torday and Dr. Miller. This provides empiric evidence that the conventional way of thinking about evolution as unidirectional is incorrect, leaving open the possibility that it is determined by cell-cell interactions, not sexual selection and reproductive strategy. Rather, the process of evolution can be productively traced through the conservation of an identifiable set of First Principles of Physiology that began with the unicellular form and have been consistently maintained, as reflected by the return to the unicellular state over the course of the life cycle.
The Subfamily Steninae Macleay 1825 Coleoptera Staphylinidae Of Japan Dianous And Stenus S Comma Group To S Guttalis Group
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Author : 直海俊一郎
language : en
Publisher:
Release Date : 2017
The Subfamily Steninae Macleay 1825 Coleoptera Staphylinidae Of Japan Dianous And Stenus S Comma Group To S Guttalis Group written by 直海俊一郎 and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Staphylinidae categories.
Olenekian Early Triassic Ammonoids And Conodonts From Southern Thailand
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Author :
language : en
Publisher:
Release Date : 2023
Olenekian Early Triassic Ammonoids And Conodonts From Southern Thailand written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
The Triassic Timescale
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Author : Spencer G. Lucas
language : en
Publisher: Geological Society of London
Release Date : 2010
The Triassic Timescale written by Spencer G. Lucas and has been published by Geological Society of London this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Cyclostratigraphy categories.
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.
The Global Triassic
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Author : Spencer G. Lucas
language : en
Publisher:
Release Date : 2007
The Global Triassic written by Spencer G. Lucas and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Geology, Stratigraphic categories.
Radiolarians In The Sedimentary Record
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Author : P. De Wever
language : en
Publisher: CRC Press
Release Date : 2002-02-28
Radiolarians In The Sedimentary Record written by P. De Wever and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-02-28 with Science categories.
Radiolarians in the Sedimentary Record presents the current state of knowledge on fossil radiolarians. The author discusses the record, as well as new integrated taxonomic systems at the family level. The book provides comprehensive coverage of the fossil record of these unicellular organisms. It also discusses their important role in the history of the Earth and their development of the biosphere. This text will prove indispensable for graduate students and researchers in geology, oceanography and earth sciences.
The Timetree Of Life
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Author : S. Blair Hedges
language : en
Publisher: OUP Oxford
Release Date : 2009-04-23
The Timetree Of Life written by S. Blair Hedges and has been published by OUP Oxford this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-04-23 with Science categories.
The evolutionary history of life includes two primary components: phylogeny and timescale. Phylogeny refers to the branching order (relationships) of species or other taxa within a group and is crucial for understanding the inheritance of traits and for erecting classifications. However, a timescale is equally important because it provides a way to compare phylogeny directly with the evolution of other organisms and with planetary history such as geology, climate, extraterrestrialimpacts, and other features.The Timetree of Life is the first reference book to synthesize the wealth of information relating to the temporal component of phylogenetic trees. In the past, biologists have relied exclusively upon the fossil record to infer an evolutionary timescale. However, recent revolutionary advances in molecular biology have made it possible to not only estimate the relationships of many groups of organisms, but also to estimate their times of divergence with molecular clocks. The routineestimation and utilization of these so-called 'time-trees' could add exciting new dimensions to biology including enhanced opportunities to integrate large molecular data sets with fossil and biogeographic evidence (and thereby foster greater communication between molecular and traditional systematists). Theycould help estimate not only ancestral character states but also evolutionary rates in numerous categories of organismal phenotype; establish more reliable associations between causal historical processes and biological outcomes; develop a universally standardized scheme for biological classifications; and generally promote novel avenues of thought in many arenas of comparative evolutionary biology.This authoritative reference work brings together, for the first time, experts on all major groups of organisms to assemble a timetree of life. The result is a comprehensive resource on evolutionary history which will be an indispensable reference for scientists, educators, and students in the life sciences, earth sciences, and molecular biology. For each major group of organism, a representative is illustrated and a timetree of families and higher taxonomic groups is shown. Basic aspects ofthe evolutionary history of the group, the fossil record, and competing hypotheses of relationships are discussed. Details of the divergence times are presented for each node in the timetree, and primary literature references are included. The book is complemented by an online database(www.timetree.net) which allows researchers to both deposit and retrieve data.