Molecular Paleobiology of the Echinoderm Skeleton - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Molecular Paleobiology of the Echinoderm Skeleton write by Jeffrey R. Thompson. This book was released on 2022-12-01. Molecular Paleobiology of the Echinoderm Skeleton available in PDF, EPUB and Kindle. The echinoderms are an ideal group to understand evolution from a holistic, interdisciplinary framework. The genetic regulatory networks underpinning development in echinoderms are some of the best known for any model group. Additionally, the echinoderms have an excellent fossil record, elucidating in in detail the evolutionary changes underpinning morphological evolution. In this Element, the echinoderms are discussed as a model group for molecular palaeobiological studies, integrating what is known of their development, genomes, and fossil record. Together, these insights shed light on the molecular and morphological evolution underpinning the vast biodiversity of echinoderms, and the animal kingdom more generally.
A Review and Evaluation of Homology Hypotheses in Echinoderm Paleobiology
A Review and Evaluation of Homology Hypotheses in Echinoderm Paleobiology - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A Review and Evaluation of Homology Hypotheses in Echinoderm Paleobiology write by Colin D. Sumrall. This book was released on 2023-04-13. A Review and Evaluation of Homology Hypotheses in Echinoderm Paleobiology available in PDF, EPUB and Kindle. 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.
A Review of Blastozoan Echinoderm Respiratory Structures
A Review of Blastozoan Echinoderm Respiratory Structures - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook A Review of Blastozoan Echinoderm Respiratory Structures write by Sarah L. Sheffield. This book was released on 2022-12-31. A Review of Blastozoan Echinoderm Respiratory Structures available in PDF, EPUB and Kindle. Echinoderms have evolved diverse and disparate morphologies throughout the Phanerozoic. Among them, blastozoans, an extinct group of echinoderms that were an important component of Paleozoic marine ecosystems, are primarily subdivided into groups based on the morphology of respiratory structures. However, systematic and phylogenetic research from the past few decades have shown that respiratory structures in blastozoans are not group-defining and they have re-evolved throughout echinoderm evolution. This Element provides a review of the research involving blastozoan respiratory structures, along with research concerning the morphology, paleoecology, and ontogeny of each of the major groupings of blastozoans as it relates to their corresponding respiratory structures. Areas of future research in these groups are also highlighted.
The Ecology of Biotic Interactions in Echinoids
The Ecology of Biotic Interactions in Echinoids - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook The Ecology of Biotic Interactions in Echinoids write by Elizabeth Petsios. This book was released on 2023-10-31. The Ecology of Biotic Interactions in Echinoids available in PDF, EPUB and Kindle. 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.
Introduction to Paleobiology and the Fossil Record
Introduction to Paleobiology and the Fossil Record - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Introduction to Paleobiology and the Fossil Record write by Michael J. Benton. This book was released on 2020-04-14. Introduction to Paleobiology and the Fossil Record available in PDF, EPUB and Kindle. This book presents a comprehensive overview of the science of the history of life. Paleobiologists bring many analytical tools to bear in interpreting the fossil record and the book introduces the latest techniques, from multivariate investigations of biogeography and biostratigraphy to engineering analysis of dinosaur skulls, and from homeobox genes to cladistics. All the well-known fossil groups are included, including microfossils and invertebrates, but an important feature is the thorough coverage of plants, vertebrates and trace fossils together with discussion of the origins of both life and the metazoans. All key related subjects are introduced, such as systematics, ecology, evolution and development, stratigraphy and their roles in understanding where life came from and how it evolved and diversified. Unique features of the book are the numerous case studies from current research that lead students to the primary literature, analytical and mathematical explanations and tools, together with associated problem sets and practical schedules for instructors and students. New to this edition The text and figures have been updated throughout to reflect current opinion on all aspects New case studies illustrate the chapters, drawn from a broad distribution internationally Chapters on Macroevolution, Form and Function, Mass extinctions, Origin of Life, and Origin of Metazoans have been entirely rewritten to reflect substantial advances in these topics There is a new focus on careers in paleobiology
