The Early Evolution of Metazoa and the Significance of Problematic Taxa

The Early Evolution of Metazoa and the Significance of Problematic Taxa
Author :
Publisher : Cambridge University Press
Total Pages : 0
Release :
ISBN-10 : 9780521402422
ISBN-13 : 0521402425
Rating : 4/5 (22 Downloads)

Synopsis The Early Evolution of Metazoa and the Significance of Problematic Taxa by : Alberto M. Simonetta

This book embraces general problems of animal classification of animals and new information on their molecular sequences.

Origin and Early Evolution of the Metazoa

Origin and Early Evolution of the Metazoa
Author :
Publisher : Springer Science & Business Media
Total Pages : 568
Release :
ISBN-10 : 9781489924278
ISBN-13 : 1489924272
Rating : 4/5 (78 Downloads)

Synopsis Origin and Early Evolution of the Metazoa by : Jere H. Lipps

Several years ago, we realized that the most prominent ideas that had been ex pressed about the origin and early evolution of the Metazoa seemed to have been developed chiefly by zoologists using evidence from modern species without reference to the fossil record. Paleontologists had, in fact, put forth their own ideas but the zoological and the paleontological evidence were about the problem, seldom considered together, especially by zoologists. We believed that the paleon tological documentation of the first Metazoa was too scattered, too obscure to Western readers, and much of it too recent to have been readily available to our colleagues in zoology. Whether or not that was entirely true, we thought that a single volume reviewing the fossil record of the earliest Metazoa would be useful to many in both paleontology and zoology, especially since so much new informa tion has been developed in the last few years. Some of this information has been summarized in general articles recently, but an overview of most of the field does not exist. We therefore organized this book in five parts so that the evidence could be placed in perspective and summarized and inferences made from it. Part I intro duces the previous hypotheses that have been proposed for the origin and early radiation of Metazoa. Part II consists of two summary chapters that set the sedi mentological, geochemical, and biological background to the known radiations of Metazoa.

Molecular Evolution: Towards the Origin of Metazoa

Molecular Evolution: Towards the Origin of Metazoa
Author :
Publisher : Springer Science & Business Media
Total Pages : 191
Release :
ISBN-10 : 9783642722363
ISBN-13 : 3642722369
Rating : 4/5 (63 Downloads)

Synopsis Molecular Evolution: Towards the Origin of Metazoa by : Werner E.G. Müller

Recently, new genes and their proteins that revealed striking new insights into the early evolution of multicellular animals have been identified and characterized from members of the lowest metazoan phylum, the porifera (sponges). The unexpected result was that the sequences obtained from sponge displayed high similarity to those found in higher metazoa; in consequence, it was concluded that during the transition from protozoa to metazoa the major structural and regulatory proteins evolved only once. The data gathered are now powerful arguments to establish monophyly of metazoa; in addition, new insights on the evolutionary diversification of metazoa were obtained.

Encyclopedia of Paleontology

Encyclopedia of Paleontology
Author :
Publisher : Routledge
Total Pages : 1153
Release :
ISBN-10 : 9781134271412
ISBN-13 : 1134271417
Rating : 4/5 (12 Downloads)

Synopsis Encyclopedia of Paleontology by : Ronald Singer

The Encyclopedia of Paleontology is designed to address the shortage of general reference works on both vertebrate and invertebrate paleontology and to serve the needs of students and lay persons interested in the field. As the encyclopedia aims to provide basic information, the majority of the 350 entries are devoted to explanations of paleontological concepts and techniques, examinations of the evolutionary development of particular organisms and biological features, profiles of major discoveries, and biographies of leading scientists. Each entry includes an essay and a further reading list. An international team of 200 leading experts in the field has prepared the illustrations and the essays, which range from concise descriptions to comprehensive discussions.

The Origin of Animal Body Plans

The Origin of Animal Body Plans
Author :
Publisher : Cambridge University Press
Total Pages : 364
Release :
ISBN-10 : 0521779286
ISBN-13 : 9780521779289
Rating : 4/5 (86 Downloads)

Synopsis The Origin of Animal Body Plans by : Wallace Arthur

This book examines both the origin of body plans in particular and the evolution of animal development in general.

Early Life on Earth

Early Life on Earth
Author :
Publisher : Columbia University Press
Total Pages : 642
Release :
ISBN-10 : 9780231080880
ISBN-13 : 0231080883
Rating : 4/5 (80 Downloads)

Synopsis Early Life on Earth by : Stefan Bengtson

This study is organized around three themes: the origin and early diversification of life during the Archean Eon; the maturation of life and the Earth during the long Proterozoic Eon; and the explosive diversification of multicellular life that marks the dawn of the Phanerozoic Eon. The contributors discuss the coherence of history, the combinatorial generation of taxonomic diversity, early Metazoan evolution, and the Cambrian explosion.

The Cambrian Fossils of Chengjiang, China

The Cambrian Fossils of Chengjiang, China
Author :
Publisher : John Wiley & Sons
Total Pages : 332
Release :
ISBN-10 : 9781118896310
ISBN-13 : 1118896319
Rating : 4/5 (10 Downloads)

Synopsis The Cambrian Fossils of Chengjiang, China by : Hou Xian-Guang

The celebrated lower Cambrian Chengjiang biota of Yunnan Province, China, represents one of the most significant ever paleontological discoveries. Deposits of ancient mudstone, about 520 million years old, have yielded a spectacular variety of exquisitely preserved fossils that record the early diversification of animal life. Since the discovery of the first specimens in 1984, many thousands of fossils have been collected, exceptionally preserving not just the shells and carapaces of the animals, but also their soft tissues in fine detail. This special preservation has produced fossils of rare beauty; they are also of outstanding scientific importance as sources of evidence about the origins of animal groups that have sustained global biodiversity to the present day. Much of the scientific documentation of the Chengjiang biota is in Chinese, and the first edition of this book was the first in English to provide fossil enthusiasts with a comprehensive overview of the fauna. The second edition has been fully updated and includes a new chapter on other exceptionally preserved fossils of Cambrian age, exciting new fossil finds from Chengjiang, and a phylogenetic framework for the biota. Displaying some 250 figures of marvelous specimens, this book presents to professional and amateur paleontologists, and all those fascinated by evolutionary biology, the aesthetic and scientific quality of the Chengjiang fossils.

Arthropod Relationships

Arthropod Relationships
Author :
Publisher : Springer Science & Business Media
Total Pages : 377
Release :
ISBN-10 : 9789401149044
ISBN-13 : 9401149046
Rating : 4/5 (44 Downloads)

Synopsis Arthropod Relationships by : Richard A. Fortey

The arthropods contain more species than any other animal group, but the evolutionary pathways which led to their current diversity are still an issue of controversy. Arthropod Relationships provides an overview of our current understanding, responding to the new data arising from sequencing DNA, the discovery of new Cambrian fossils as direct evidence of early arthropod history, and developmental genetics. These new areas of research have stimulated a reconsideration of classical morphology and embryology. Arthropod Relationships is the first synthesis of the current debate to emerge: not since the volume edited by Gupta was published in 1979 has the arthropod phylogeny debate been, considered in this depth and breadth. Leaders in the various branches of arthropod biology have contributed to this volume. Chapters focus progressively from the general issues to the specific problems involving particular groups, and thence to a consideration of embryology and genetics. This wide range of disciplines is drawn on to approach an understanding of arthropod relationships, and to provide the most timely account of arthropod phylogeny. This book should be read by evolutionary biologists, palaeontologists, developmental geneticists and invertebrate zoologists. It will have a special interest for post-graduate students working in these fields.

Arthropod Fossils and Phylogeny

Arthropod Fossils and Phylogeny
Author :
Publisher : Columbia University Press
Total Pages : 358
Release :
ISBN-10 : 9780231096546
ISBN-13 : 0231096542
Rating : 4/5 (46 Downloads)

Synopsis Arthropod Fossils and Phylogeny by : Gregory D. Edgecombe

Gregory Edgecombe has assembled premier specialists in the study of arthropods, each of whom addresses a major issue in arthropod diversity by reviewing evidence of key fossils from a common perspective and examining the interplay between extinct and extant species through inference of the structure of the arthropod evolutionary tree.With the most complete collection of modern perspectives on the history of Arthropoda, this volume advances the current debate on paleontology's role in discovering life's hierarchy. Of interest to specialists in a wide range of fields including paleontology, petroleum geology, oceanography, and entomology, Arthropod Fossils and Phylogeny will be the standard general reference on arthropod paleontology for years to come.

Perspectives in Animal Phylogeny and Evolution

Perspectives in Animal Phylogeny and Evolution
Author :
Publisher : Oxford University Press
Total Pages : 360
Release :
ISBN-10 : 9780198566205
ISBN-13 : 0198566204
Rating : 4/5 (05 Downloads)

Synopsis Perspectives in Animal Phylogeny and Evolution by : Alessandro Minelli

Animal phylogeny is undergoing a major revolution due to the availability of an ever increasing amount of molecular data, the application of novel methods of phylogenetic reconstruction, and advances in palaeontology and molecular developmental biology.This book revises the major events in animal evolution in the light of these recent advances.