Early Silurian (Telychian) rugose coral fauna of Daguan area, northeast Yunnan province, China |
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Authors: | Chen Jianqiang He Xinyi and Tang Lan |
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Institution: | (1) Department of Geology and Mineral Resources, China University of Geosciences, Beijing, 100083, China;(2) Guangxi University, Nanning, 530003, China |
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Abstract: | Study on rugose coral fauna of the Sifengya Formation (early Telychian) and Daluzhai Formation (mid-late Telychian) in Daguan
area, northeast Yunnan Province, China was carried out. Rugose coral fauna of the Sifengya Formation included 18 genera and
34 species, while Daluzhai Formation with nine genera, ten species. We described rugose coral fauna (12 genera, 19 species)
including one new genus and five new species, i.e. Protoketophyllum daguanense gen. et sp. nov., Crassilasma huanggexiense sp. nov., Pseudophaulactis heae sp. nov., P. convolutus sp. nov., and Shensiphyllum minor sp. nov. The characteristics and geological significance of rugose coral fauna of Sifengya Formation and Daluzhai Formation
were analyzed. Particularly, rugose coral fauna of the Sifengya Formation represent early Telychian rugosan fauna in the Upper
Yangtze region and improve the sequences of early Silurian (Llandovery) rugose coral assemblages in Yangtze region. It is
therefore very meaningful to further analyze radiation period of rugose coral fauna in such epoch.
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Translated from Acta Palaeontologica Sinica, 2005, 44(2): 229–246 译自: 古生物学报, 2005, 44(2): 229–246] |
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Keywords: | rugose coral fauna Telychian Silurian Daguan northeast Yunnan Province China |
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