Download or read book The Skeleton and Classification of Calcareous Sponges written by George Parker Bidder and published by . This book was released on 1898 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Revision of the Classification of the Calcareous Sponges written by Maurice Burton and published by . This book was released on 1963 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fossil and Recent Sponges written by Joachim Reitner and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fossil and Recent Sponges contains articles on taxonomic, phylogenetic and ecological aspects of sponges of both biological and paleontological interest. They focus on three main topics: phylogeny and systematics, biology, and paleoecology of sponges. The reader is offered an overview over the most important aspects of current sponge research: - establishment of a new taxonomy based on mono phyletic groups (phylogenetic systematics) including recent and fossil taxa - new concepts of the biomineralisation of sponge skeletons - palaeoenvironmental analysis of fossil sponge buildups.

Download or read book Systema Porifera written by John N.A. Hooper and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1779 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research whilst compiling this book has uncovered a fauna about twice the size as that previously published in the literature and consequently Systema Porifera revises and stabilizes the systematics of the phylum to accommodate this new knowledge in a contemporary framework. Practical tools (key illustrations, descriptions of character) are provided to facilitate the assignment of approximately 680 extant and 100 fossil genera. Systema Porifera is unique making sponge taxonomy widely available at the practical level of classification (genera, families, order). It is a taxonomic revision of sponges and spongiomorphis (such as sphinctozoans and archaeocyathans) based on re-evaluation of type materials and evidence. It is also a practical guide to sponge identification providing descriptions and illustrations of characters and interpretation of their importance to systematics. Systema Porifera addresses many long standing nomenclatural problems and provides a sound baseline for future debate on sponges and their place in time and space. Systema Porifera describes 3 classes, 7 subclasses, 24 orders, 127 families and 682 valid genera of extant sponges (with over 1600 nominal generic names and an additional 500 invalid names treated). Treatment of the fossil fauna is less comprehensive or critical, although 6 classes, 30 orders, 245 families and 998 fossil genera are mentioned. Keys to all recent and many fossil taxa are provided.

Download or read book A Revision of the Classification of the Calcareous Sponges written by Maurice Burton and published by . This book was released on 1963 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thesaurus of Sponge Morphology written by Nicole Boury-Esnault and published by . This book was released on 1997 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Revision of the Classification of the Calcareous Sponges written by and published by . This book was released on 1963 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparative Study of the External Form and Skeleton of the Calcareous Sponges Clathrina Coriacea and Clathrina Blanca from Santa Catalina Island California written by and published by . This book was released on 1978 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Classification and Phylogeny of the Calcareous Sponges with a Reference List of All the Described Species Systematically Arranged written by Arthur Dendy and published by . This book was released on 1913 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Comparative Study of the External Form and Skeleton of the Calcareous Sponges Clathrina Coriacea and C Blanca from Santa Catalina Island written by and published by . This book was released on 1978* with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Revision of the Classification of the Calcareous Sponges with a Catalogue of the Specimens in the British Museum Natural History written by Natural History Museum (London, England) and published by . This book was released on 1963 with total page 693 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Royal Society of London written by Royal Society (Great Britain) and published by . This book was released on 1899 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Sponge Science Phylogeny Systematics Ecology written by and published by Academic Press. This book was released on 2012-09-01 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: On of two special issues of Advances in Marine Biology focusing on sponge science it features comprehensive reviews of the latest studies that are advancing our understanding of the fascinating marine phylum Porifera. The selected contributors are internationally renowned researchers in their respective fields and provide a thorough overview of the state-of-the-art of sponge science This volume will become a reference to marine biologists with interest in benthic ecology and biotic interactions, including symbiosis chemical and molecular ecology systematics, phylogeny, and evolution sponge culture and tissue engineering

Download or read book The Cell Biology of Sponges written by T.L. Simpson and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modem biology owes much to the study of favorable model systems which fa cilitates the realization of critical experiments and results in the introduction of new concepts. Examples of such systems are numerous and studies of them are regularly recognized by the scientific community. The 1983 Nobel Prize in Med icine and Physiology is a magnificent example in which com plants served as the experimental model. In a manner somewhat more modest, other biological systems have attracted recognition due to their critical phylogenetic position, or indeed because of their uniqueness which distinguishes them from all other organisms. Assuredly, among the whole assemblage ofliving organisms, sponges stand out as worthy of interest by scientists: they are simultaneously models, an important group in evolution, and animals unlike others. As early as the beginning of this century, sponges appeared as exceptional models for the study of phenomena of cell recognition. Innumerable works have been dedicated to understanding the mechanisms which assure the reaggregation of dissociated cells and the reconstitution of a functional individual. Today, re search on these phenomena is at the ultimate, molecular level. Through an as semblage of characteristics the sponges are, based upon all available evidence, the most primitive Metazoans. Their tissues-perhaps one can say their cell groups-are loosely assembled (they possess no tight or gap junctions), cell dif ferentiation appears highly labile, and they do not develop any true organs. But, they are most certainly Metazoans.

Download or read book The Comparative Embryology of Sponges written by Alexander V. Ereskovsky and published by Springer Science & Business Media. This book was released on 2010-03-27 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the major questions in the evolution of animals is the transition from unicellular to multicellular organization, which resulted in the emergence of Metazoa through a hypothetical Urmetazoa. The Comparative Embryology of Sponges contains abundant original and literary data on comparative embryology and morphology of the Porifera (Sponges), a group of 'lower Metazoa'. On the basis of this material, original typization of the development of Sponges is given and the problems concerning origin and evolution of Porifera and their ontogenesis are discussed. A morphogenetic interpretation of the body plan development during embryogenesis, metamorphosis and asexual reproduction in Sponges is proposed. Special attention is given to the analysis of characteristic features of the ontogenesis in Porifera. The book pursues three primary goals: 1) generalization of all existing information on individual development of sponges, its classification and a statement according to taxonomical structure of Porifera; 2) revealing of heterogeneity of morphogenesis and peculiarities of ontogeneses in various clades of Porifera, and also their correlations with the organization, both adult sponges, and their larvae; 3) revealing homology of morphogeneses in both Porifera and Eumetazoa, testifying to the general evolutionary roots of multicellular animals, and peculiar features of sponges' morphogeneses and ontogenesis. This book will be of interest to embryologists, zoologists, morphologists and researchers in evolutionary biology.

Download or read book Abstracts of the Papers Printed in the Philosophical Transactions of the Royal Society of London written by Royal Society (Great Britain) and published by . This book was released on 1899 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Zoology written by and published by . This book was released on 1913 with total page 1416 pages. Available in PDF, EPUB and Kindle. Book excerpt: