The Great Ordovician Biodiversification Event 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2024

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Barry D. Webby 作者

Columbia University Press

译者

2004 出版日期

484 页数

$ 146.90 价格

丛书系列

9780231126786 图书编码

The Great Ordovician Biodiversification Event 在线电子书图书标签: 英文演化古生物

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The Great Ordovician Biodiversification Event 在线电子书 epub 下载 mobi 下载 pdf 下载 txt 下载 2024

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Two of the greatest evolutionary events in the history of life on Earth occurred during Early Paleozoic time. The first was the Cambrian explosion of skeletonized marine animals about 540 million years ago. The second was the "Great Ordovician Biodiversification Event," which is the focus of this book. During the 46-million-year Ordovician Period (489--443 m.y.), a bewildering array of adaptive radiations of "Paleozoic- and Modern-type" biotas appeared in marine habitats, the first animals (arthropods) walked on land, and the first non-vascular bryophyte-like plants (based on their cryptospore record) colonized terrestrial areas with damp environments. This book represents a compilation by a large team of Ordovician specialists from around the world, who have enthusiastically cooperated to produce this first globally orientated, internationally sponsored IGCP (International Geological Correlation Program) project on Ordovician biotas. The major part is an assembly of genus- and species-level diversity data for the many Ordovician fossil groups. The book also presents an evaluation of how each group diversified through Ordovician time, with assessments of patterns of change and rates of origination and extinction. As such, it will become the standard work and data source for biotic studies on the Ordovician Period.

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