Early Tertiary Ostracoda from the Dongpu Region

东濮地区早第三纪介形类

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Author: Research Institute of Exploration and Development, hongyuan Petroleum Exploration Bureau
Language: Chinese with English summary
Published on: 1989-01
Hardcover

In Dongpu region, including northern Henan province and western Shangdong province, the Early Tertiary sediments with rich fossils are well-developed as those in the coastal region of Bohai and can be divided in ascending order into three units, the names of which are the same of the coastal region of Bohai as follows: the Kongdian Formation, the Shaheji Formation and the Dongying Formation. In this region the Early Tertiary nonmarine ostracode fauna contains 23 genera and 94 species, including 16 new species. This ostracode fauna is similar to that from the coastal region of Bohai. In the former fauna there are, together with usual freshwater genera, a large number of endemic forms previously appearing in the Early Tertiary deposits of the coastal region of Bohai, but the former one is less abundant than the latter. In this ostracode fauna seven ostracode assemblages, closely corresponding to those from the coastal region of Bohai, have been recognized in ascending order as in Table 1: After analysing the characters of these two ostracode faunas mentioned above, it is suggested that they belong to the same biogeographic realm and possess the similar ecological conditions.



1. Cyprididae Baird, 1845
2. Cypridinae Baird, 1845
3. Candoninae Daday, 1900
4. Phacocyprinae Bojie, 1978
5. Notodormadinae Kaufmann, 1900
6. Ilyocypridinae Kaufmann, 1900
7. Cytheridae Baird, 1850
8. Limnocytherinae Klie, 1938



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