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Algae are internationally divided into sixteen phyla, but China adapted the classification of only fourteen phyla during the national algae meetin gheld in Qingdao in 1964. Coccoliths belong to Coccolithophyceae of Chrysophuyta. They are a primary producer and a main osuce of abyssal carbonate and hycrocarbon in marine oil-gas. This book consists of three parts includin gnineteen chapters, 76 plates and 343 photos, about 500000 Chinese words. Coccolith fossils of Middle Proterozoic ages to Permian ages are described that include 186 new species, named or unnamed, of which 36 species were published. The cocclith fossils recently discovered in a Middle Proterozoic iron deposit was also included. Especially, the discovery of the Silurian Discoaster category not only made its occurrence earlier, but also laid a foundation of coccolith classification. Research on today's living phytoplanktons indicates that coccolith amounts to about one third of them, Which can fix at least 30 billion tons of carbon or 110 billion tons of caron dioxide. It is of practicla importance for improving the earth's environment and eliminate " the green house effect" which is brought about by the excess carbon dioxide.

This book is divided into three parts:

Part I Geological outline of China coccolith fossils' origin during Proterozoic and
Palaeozoic Eras

Part II Time-mark description of China coccolith fossils during proterozoic and
Palaeozoic Eras

Part III Several quastions during coccolith fossils' discussion and research

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