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Author: Boris Sergeevich Sokolov
Publisher:
ISBN:
Category : Cnidaria, Fossil
Languages : en
Pages : 920
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Book Description
Author: Boris Sergeevich Sokolov
Publisher:
ISBN:
Category : Cnidaria, Fossil
Languages : en
Pages : 920
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Book Description
Author: Joana R. Xavier
Publisher: Frontiers Media SA
ISBN: 2889769542
Category : Science
Languages : en
Pages : 481
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Book Description
Author: Matthew H. Nitecki
Publisher: Springer Science & Business Media
ISBN: 1461546915
Category : Science
Languages : en
Pages : 249
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Book Description
Receptaculitids are extinct high-level fossils that provide a window into the history of life. After the discovery and analysis of a deposit of phosphatized receptaculitids on the Baltic Sea island of Öland, the authors conclude that receptaculitids possess an attribute not found in any other group of organisms, living or fossil.
Author: John N.A. Hooper
Publisher: Springer Science & Business Media
ISBN: 1461507472
Category : Science
Languages : en
Pages : 1779
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Book Description
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.
Author:
Publisher:
ISBN:
Category : National parks and reserves
Languages : en
Pages : 582
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Author:
Publisher:
ISBN:
Category : Electronic journals
Languages : en
Pages : 560
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Author:
Publisher:
ISBN:
Category : Mineral industries
Languages : en
Pages : 624
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Author: Michael Robert House
Publisher:
ISBN:
Category : Geology, Stratigraphic
Languages : en
Pages : 368
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Book Description
Author: David I. Gravestock
Publisher:
ISBN:
Category : Archaeocyatha
Languages : en
Pages : 156
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Book Description
Author: U.S. Geological Survey Library
Publisher: MacMillan Publishing Company
ISBN:
Category : Science
Languages : en
Pages : 774
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Book Description
