Spatial and Temporal Distribution of the Cryptospirifer Fauna (Middle Permian Brachiopods) in the Tethyan Realm and Its Paleogeographic Implications
Spatial and Temporal Distribution of the Cryptospirifer Fauna (Middle Permian Brachiopods) in the Tethyan Realm and Its Paleogeographic Implications
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DOI：
10.1111/j.1755-6724.2008.tb00319.x
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发表时间：
2008-02
期刊：
影响因子：
--
通讯作者：
J. Xiao-chi;Zhan Lipei
中科院分区：
文献类型：
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作者：
J. Xiao-chi;Zhan Lipei
摘要：中国南方扬子地台中二叠世隐翅虫动物群（腕足类）迄今已在30多个地点发现。对不同地区的资料的研究表明，它在地层上出现在从上昆古尔阶到沃尔阶的三个区间。滇西保山地块的动物群产于大凹子组底部，时代可能为早白垩世。在中国以外的伊朗中部和西北部以及土耳其中部也有隐翅虫动物群的报道，这些动物群的年龄可能在Wordian/Capitanian边界附近。早二叠世晚期以来的全球快速变暖以及其他合适的环境因素，如适当的基底，碎屑输入和水深，使冈瓦纳起源的保山地块以及伊朗和土耳其的相关构造地层单位成为Cryptocurfer动物群的宿主，Cryptocurfer动物群是在扬子地台（华夏省的一个模式区）中演化的。
Abstract: The middle Permian Cryptospirifer fauna (brachiopod) has hitherto been found in more than 30 localities in the Yangtze Platform, South China. Examination of data from various localities shows that it occurs stratigraphically in three intervals in the range from the upper Kungurian to Wordian. In the Baoshan block in western Yunnan the fauna occurs in the basal part of the Daaozi Formation and is of possibly an early Wordian age. Outside China the Cryptospirifer fauna has been reported from central and northwest Iran and central Turkey, where the fauna may have an age around the Wordian\Capitanian boundary. Rapid global warming since the late Early Permian and possession of other suitable environmental factors such as proper substrate, clastic input and water depth enabled the Gondwana‐derived Baoshan Block and related tectono‐stratigraphic units in Iran and Turkey to host the Cryptospirifer fauna, a fauna evolved in the Yangtze Platform that is a type area of the Cathaysian province.