Diversity and extinction patterns of Permian coral faunas of China
Diversity and extinction patterns of Permian coral faunas of China
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DOI：
10.1080/002411600750053853
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发表时间：
2000-12
期刊：
影响因子：
1.5
通讯作者：
Xiangdong Wang;T. Sugiyama
中科院分区：
文献类型：
--
作者：
Xiangdong Wang;T. Sugiyama
通过对中国二叠纪珊瑚56科、263属、2100种的统计分析，揭示了中国二叠纪珊瑚的多样性和灭绝模式。珊瑚多样性最高的是船山期，共有39科167属753种。而长兴阶的物种多样性最低，只有10科20属68种。在二叠纪，可以识别出两种多样性的减少。第一次发生在茅口阶末期（瓜达卢普阶末期），珊瑚科、属和种分别减少了75.6%、77.8%和82.2%。第二次大的多样性下降发生在长兴纪末期，当时所有的皱纹珊瑚和板状珊瑚都灭绝了。泛古陆瓜达卢普纪末的灭绝可能与中二叠世全球海退有关。而华南茅口末期的生物绝灭可能与峨眉山玄武岩的喷发有关。珊瑚多样性很好地表达了三带古生物地理格局。
Coral diversity and extinction patterns in the Permian of China are revealed through statistical analyses of 56 coral families, 263 genera and 2100 species from five consecutive time intervals. The highest coral diversity is in the Chuanshanian, with 753 species, 167 genera and 39 families. In contrast, the lowest diversity is in the Changhsingian, with only 68 species, 20 genera and 10 families. Two decreases in diversity can be recognized during the Permian. The first occurred at the end of the Maokouan (end-Guadalupian) and is marked by the loss of 75.6% of coral families, 77.8% of coral genera and 82.2% of coral species. The second major diversity drop took place at the end of the Changhsingian, when all rugose and tabulate corals became extinct. The extinction at the end of the Guadalupian in Pangea may be related to the middle Permian global regression. However, in South China the end-Maokouan extinction may be related to the eruption of the Omeishan Basalt. A triple-zoned palaeobiogeographical pattern is well expressed by coral diversity.