OSTRACOD FAUNAS FROM THE LUOFOZHAI GROUP IN THE NANXIONG BASIN OF GUANGDONG PROVINCE,CHINA
Zhang Xianqiu
Abstract
Zhang Xianqiu
Abstract
This study is based on 725 ostracod samples systematically collected from eight profiles of the Upper Cretaceous—Palaeogene Luofozhai Group at Pingling,Wutaigang,Luofozhai,south to Nanxiong town,Fengmenao,Xiuren,Huangmaoping and Nuanshuitang in Nanxiong of Guangdong Province,Southern China.78 ostracod species(including two new species)in 21 genara are described from the Luofozhai Group.Two ostracod faunas and five zones are recognized in ascending order:the latest Cretaceous Porpocypris fauna(subdivided into P.globra and P.sphaeroidalis zones)and the Palaeocene Cypris-Sinocypris fauna(subdivided into Cypris concina,Sinocypris excelsa and Cyprois reniformis zones,corresponding to the Early,Middle and Late Palaeocene).
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This study is based on 725 ostracod samples systematically collected from eight profiles of the Upper Cretaceous—Palaeogene Luofozhai Group at Pingling,Wutaigang,Luofozhai,south to Nanxiong town,Fengmenao,Xiuren,Huangmaoping and Nuanshuitang in Nanxiong of Guangdong Province,Southern China.78 ostracod species(including two new species)in 21 genara are described from the Luofozhai Group.Two ostracod faunas and five zones are recognized in ascending order:the latest Cretaceous Porpocypris fauna(subdivided into P.globra and P.sphaeroidalis zones)and the Palaeocene Cypris-Sinocypris fauna(subdivided into Cypris concina,Sinocypris excelsa and Cyprois reniformis zones,corresponding to the Early,Middle and Late Palaeocene).
Key concepts: Ostracod, Fauna, Cretaceous, Geology, Paleontology, China, Paleogene, Group (periodic table)