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.
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.
Virtual Paleontology
Virtual Paleontology - 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 Virtual Paleontology write by Jennifer E. Bauer. This book was released on 2021-11-11. Virtual Paleontology available in PDF, EPUB and Kindle. Imaging and visualizing fossils in three dimensions with tomography is a powerful approach in paleontology. Here, the authors introduce select destructive and non-destructive tomographic techniques that are routinely applied to fossils and review how this work has improved our understanding of the anatomy, function, taphonomy, and phylogeny of fossil echinoderms. Building on this, this Element discusses how new imaging and computational methods have great promise for addressing long-standing paleobiological questions. Future efforts to improve the accessibility of the data underlying this work will be key for realizing the potential of this virtual world of paleontology.
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.
Echinoderm Nutrition
Echinoderm Nutrition - 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 Echinoderm Nutrition write by Michel Jangoux. This book was released on 1982-06-01. Echinoderm Nutrition available in PDF, EPUB and Kindle. The purpose of this book is to present the state of knowledge concerning nutrition and point out directions for future work for the Echinodermata, an ancient group which shows great diversity in form and function, and whose feeding activities can have great environmental impact.
