Cambrian and Lower Ordovician Bradoriida From Zhejiang, Hunan and Shaanxi Provinces

浙西、湘西及陕南寒武纪至早奥陶世的高肌虫

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Author: Shu Degan
Language: Chinese with English summary
Published on: 1990-01
Hardcover

The investigation of bradoriids of South China began at the beginning of this century. However, it was since 1950's that a lot of work has been done. A six years of extensive investigation and collection of bradoriid fossils was made by as many as twenty students and teachers of Department of Geology at the northwest University in Shaanxi, Sichuan, Yunnan, Guizhou, Hubei and Guandong Provinces. On the basis of those extremely abundant materials the second monograph on Bradoriida in the world-"Cambrian Bradoriida of South China" was published . Although more than 240 bradoriid species of China was described and several of theoretical problems on Bradoriida were discussed in the book, there are still many problems remained for further study: 1. The geological range and geographical distribution of bradoriids in South China are not fully known, and field investigation ought to be made on more horizons at more localities. 2. The important microstructural features of bradoriid carapaces were nearly not dealt with at all. 3. The system atical position of Bradoriida in Crustacea and its taxonomy need to be restudied. Thus, to solve these problems is the aim of the present paper.



Chapter 1. Introduction
Chapter 2. Stratigraphy, Sedimentary Facies and Faunas
1. Geological section of Xiaoyang, Zhenba, Shaanxi Province
2. Geological section of Duibian, Jiangshan, Zhejiang Province
3. Geological sections of Shenjiawan, Cili and Waergang, Tao Yuan, Hunan Province
Chapter 3. Ontogeny and Dimorphism of Bradoriida
1. Methods of study of ontogeny
2. Ontogeny and dimorphism of some bradoriids
Chapter 4. Structures and Microstructure of Bradoriid Shells
1. Pore canals
2. Duplicatures
3. Structures of test walls
4. Microstructures on valve
Chapter 5. Systematic Description
Crustacea Pennant 1777
Bradoriida Raymond 1935
Archaeocopida Sylvester-Bradley 1961
Lipabdomida Huo et Shu 1983
Abdomida Huo et Shu 1983
Phosphatocopida Muller 1982



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