Systema Porifera
Systema Porifera

Author: John N.A. Hooper

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 1779

ISBN-13: 1461507472

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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.

Origin and Early Evolution of the Metazoa
Origin and Early Evolution of the Metazoa

Author: Jere H. Lipps

Publisher: Springer Science & Business Media

Published: 2013-11-21

Total Pages: 568

ISBN-13: 1489924272

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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.

Interpretation of Biological and Environmental Changes Across the Neoproterozoic-Cambrian Boundary
Interpretation of Biological and Environmental Changes Across the Neoproterozoic-Cambrian Boundary

Author: L.E. Babcock

Publisher: Gulf Professional Publishing

Published: 2005-11-30

Total Pages: 240

ISBN-13: 9780444520654

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The Neoproterozoic-Cambrian transition was a time of fundamental change in the biosphere. Between about 570 and 510 million years ago, marine organisms underwent considerable evolutionary innovation during a time of shifting ecological setting. This dramatic activity culminated in the first stratigraphic appearances of many recognizable groups of animals, an "event" often referred to as the "Cambrian explosion". In addition, there was a major change from a microbial mat-dominated sediment-water interface to a more extensively burrowed interface in shallow-marine settings. The early fossil record is a function not only of the rise or ecological diversification of marine organisms, but also the development of taphonomic and sedimentary conditions suitable for the preservation of mineralizing and nonmineralizing organisms. This book is devoted to an exploration of some of the emerging concepts and techniques used to develop greater insight into the early record of biologic diversification and the preservational record of that diversification during the Neoproterozoic-Cambrian transition. * Addresses key issues related to the Cambrian diversification of multicellular animals * Provocative new ideas about the factors involved in the exceptional preservation of fossils, with a balance between the development of ideas and hypothesis testing * Broad coverage of topics related to the Cambrian diversification of animals and the fossil record of that diversification; broad geographic coverage

Australia's Fossil Heritage
Australia's Fossil Heritage

Author: , The Australian Heritage Council

Publisher: CSIRO PUBLISHING

Published: 2012-07-18

Total Pages: 201

ISBN-13: 0643102302

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The National Heritage List was created in January 2004 to recognise, celebrate and protect places of outstanding heritage value to the nation. National heritage encompasses those places that reveal the richness of Australia's extraordinarily diverse natural, historic and Indigenous heritage. One aspect of natural heritage that has been little explored is Australia’s wealth of exceptional fossil sites. While a small number of fossil sites have risen to public prominence, there are many lesser-known sites that have important heritage values. The Australian Heritage Council engaged palaeontologists from state museums and the Northern Territory Museum and Art Gallery to compile lists of outstanding fossil sites and to document their characteristics and relative importance against a range of categories, with a view to further our understanding about Australia’s important fossil heritage. Sites that were listed for National or World Heritage values were not included in the places for consideration, with the focus being on lesser-known but still important sites. This book is an account of the palaeontologists’ findings. Some of the sites that were included in the initial lists have since been recognised through listing on the National Heritage List or the World Heritage List. Australia's Fossil Heritage provides a useful reference to the outstanding fossil sites it catalogues, and gives a clearer understanding of the heritage values of such sites. More generally, it contributes to a greater appreciation of Australia’s geological and fossil diversity and enables readers to learn more about Australia's prehistory.