A Review And Evaluation Of Homology Hypotheses In Echinoderm Paleobiology
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A Review And Evaluation Of Homology Hypotheses In Echinoderm Paleobiology
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Author : Colin D. Sumrall
language : en
Publisher: Cambridge University Press
Release Date : 2023-04-13
A Review And Evaluation Of Homology Hypotheses In Echinoderm Paleobiology written by Colin D. Sumrall and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-04-13 with Science categories.
The extraxial-axial theory (EAT) and universal elemental homology (UEH) are often portrayed as mutually exclusive hypotheses of homology within pentaradiate Echinodermata. EAT describes homology upon the echinoderm bauplan, interpreted through early post-metamorphic growth and growth zones, dividing it into axial regions generally associated with elements of the ambulacral system and extraxial regions that are not. UEH describes the detailed construction of the axial skeleton, dividing it into homologous plates and plate series based on symmetry, early growth, and function. These hypotheses are not in conflict; the latter is rooted in refinement of the former. Some interpretive differences arise because many of the morphologies described from eleutherozoan development are difficult to reconcile with Paleozoic forms. Conversely, many elements described for Paleozoic taxa by UEH, such as the peristomial border plates, are absent in eleutherozoans. This Element recommends these two hypotheses be used together to generate a better understanding of homology across Echinodermata.
The Ecology Of Biotic Interactions In Echinoids
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Author : Elizabeth Petsios
language : en
Publisher: Cambridge University Press
Release Date : 2023-10-31
The Ecology Of Biotic Interactions In Echinoids written by Elizabeth Petsios and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-10-31 with Reference categories.
This Element reviews the ecologies of skeletal trace-producing interactions on echinoids in Modern ecosystems and the recognition of those biogenic traces in the fossil record. This title is also available as Open Access on Cambridge Core.
Echinoderm Paleobiology
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Author : William I. Ausich
language : en
Publisher: Indiana University Press
Release Date : 2008-07-18
Echinoderm Paleobiology written by William I. Ausich and has been published by Indiana University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-07-18 with Science categories.
The dominant faunal elements in shallow Paleozoic oceans, echinoderms are important to understanding these marine ecosystems. Echinoderms (which include such animals as sea stars, crinoids or sea lilies, sea urchins, sand dollars, and sea cucumbers) have left a rich and, for science, extremely useful fossil record. For various reasons, they provide the ideal source for answers to the questions that will help us develop a more complete understanding of global environmental and biodiversity changes. This volume highlights the modern study of fossil echinoderms and is organized into five parts: echinoderm paleoecology, functional morphology, and paleoecology; evolutionary paleoecology; morphology for refined phylogenetic studies; innovative applications of data encoded in echinoderms; and information on new crinoid data sets.
Echinoderm Morphological Disparity Methods Patterns And Possibilities
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Author : Bradley Deline
language : en
Publisher: Cambridge University Press
Release Date : 2021-02-11
Echinoderm Morphological Disparity Methods Patterns And Possibilities written by Bradley Deline and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-11 with Science categories.
The quantification of morphology through time is a vital tool in elucidating macroevolutionary patterns. Studies of disparity require intense effort but can provide insights beyond those gained using other methodologies. Over the last several decades, studies of disparity have proliferated, often using echinoderms as a model organism. Echinoderms have been used to study the methodology of disparity analyses and potential biases as well as documenting the morphological patterns observed in clades through time. Combining morphological studies with phylogenetic analyses or other disparate data sets allows for the testing of detailed and far-reaching evolutionary hypotheses.
Crinoid Feeding Strategies New Insights From Subsea Video And Time Lapse
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Author : David Meyer
language : en
Publisher: Cambridge University Press
Release Date : 2021-02-28
Crinoid Feeding Strategies New Insights From Subsea Video And Time Lapse written by David Meyer and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-02-28 with Science categories.
Modern videography provides an ever-widening window into subsea echinoderm life with vast potential for new knowledge. Supported by video evidence throughout, this Element begins with time-lapse video made in 1983 on film, using an off-the-shelf camera, flash, and underwater housings. Although quality has now been significantly improved by digital imagery, films from over thirty years ago captured crinoid feeding behavior previously unknown and demonstrated a great potential to learn about many other aspects of their biology. This sequence is followed by several examples of recent digital videography from submersibles of deep-sea crinoids and remotely operated vehicles (ROVs) (stalked and unstalked), as well as close-up video of crinoids in aquaria. These recent studies enabled a new classification of crinoid arm postures, provided detailed views of food particle capture, and revealed a wide range of behaviors in taxa never before seen in life.
Echinoderm Larvae
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Author : Herbert Clifton Chadwick
language : en
Publisher:
Release Date : 1914
Echinoderm Larvae written by Herbert Clifton Chadwick and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1914 with Echinodermata categories.
Megafauna
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Author : Richard A. Fariña
language : en
Publisher: Indiana University Press
Release Date : 2013-05-22
Megafauna written by Richard A. Fariña and has been published by Indiana University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-22 with Science categories.
“An enjoyable read that provides a substantial amount of detail on the biology, ecology, and distribution of these fantastic animals . . . Highly recommended.” —Choice More than 10,000 years ago spectacularly large mammals roamed the pampas and jungles of South America. This book tells the story of these great beasts during and just after the Pleistocene, the geological epoch marked by the great ice ages. Megafauna describes the history and way of life of these animals, their comings and goings, and what befell them at the beginning of the modern era and the arrival of humans. It places these giants within the context of the other mammals then alive, describing their paleobiology—how they walked; how much they weighed; their diets, behavior, biomechanics; and the interactions among them and with their environment. It also tells the stories of the scientists who contributed to our discovery and knowledge of these transcendent creatures and the environment they inhabited. The episode known as the Great American Biotic Interchange, perhaps the most important of all natural history “experiments,” is also an important theme of the book, tracing the biotic events of both North and South America that led to the fauna and the ecosystems discussed in this book. “Collectively, this book brings attention to the discovery and natural history of ancient beasts in South America while providing a broader temporal and geographic background that allows readers to understand their evolution and potential immigration to South America.” —Quarterly Review of Biology “An excellent volume . . . This book is likely to facilitate progress in the understanding of fossil mammals from the Americas.” —Priscum
Wildlife Of Gondwana
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Author : Patricia Vickers-Rich
language : en
Publisher:
Release Date : 1999
Wildlife Of Gondwana written by Patricia Vickers-Rich and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Gondwana (Continent) categories.
Looks at the wildlife of the ancient supercontinent of Gondwana.
Marine Genetics
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Author : Antonio M. Solé-Cava
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Marine Genetics written by Antonio M. Solé-Cava and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
Our current knowledge of marine organisms and the factors affecting their ecology, distribution and evolution has been revolutionised by the use, in the last 20 years, of molecular population genetics tools. This book is the result of a meeting of world-leading experts, in Rio de Janeiro, where the state of the art of this field was reviewed. Topics covered include the molecular analysis of bio-invasions, the recent developments in marine biotechnology, the factors affecting levels of genetic variation and population structure in marine organisms and their application to conservation biology, fisheries and aquaculture. This is the first book dedicated to the genetic study of marine organisms. It will be very useful to biology students, scientists and anyone working or simply interested in areas such as marine biology, zoology, ecology, and population and molecular genetics.
The Artist And The Scientists
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Author : Peter Trusler
language : en
Publisher: Cambridge University Press
Release Date : 2010-09-03
The Artist And The Scientists written by Peter Trusler and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-03 with Science categories.
The Artist and the Scientists: Bringing Prehistory to Life presents the extraordinary lives and works of eminent paleontologists Patricia Vickers-Rich and Tom Rich, and Peter Trusler, one of the finest artists of scientific realism Australia has produced. Over more than thirty years, Patricia, Tom and Peter have travelled across Eastern Europe, Asia, the Americas, Africa, Australia and New Zealand in search of the remains of early life, including fish, dinosaurs, birds and mammals. Their successful expeditions, and the many publications and exquisite artworks that have ensued, are a testament to their scientific methodology, thirst for knowledge and eye for detail. The book follows the development of selected works of art covering the last 600 million years of the geological record. Told from the viewpoints of both scientist and artist, the reader is given a unique insight into the process of preserving and recording the evolution of prehistoric life.