Permian fusuline biostratigraphy

Permian fusuline biostratigraphy
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二叠纪Fusuline生物地层学

DOI:
10.1144/sp450.14
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发表时间:
2017-06
期刊:
Geological Society, London, Special Publication
影响因子:
--
通讯作者:
Wang Yue
Wang Yue
中科院分区:
其他
文献类型:
--
作者:
Zhang Yi-chun;Wang Yue

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摘要 为了提高全球二叠纪地层的对比性,本文对二叠纪扶苏系生物地层学进行了综述。特提斯和潘萨拉桑地区的二叠纪梭类生物地层可以大致相关,因为梭类在这两个地区之间具有良好的动物群交流。然而,在瓜达卢普世(中二叠世),由于巨大的盘古大陆的阻挡,北美克拉通地区的梭类动物群几乎没有新史瓦格动物群,仅以史瓦格动物群为主。这使得特提斯地区和北美地区之间的中二叠世生物地层学和年代地层学的相关性具有挑战性。 fusulines的重要进化关键点包括Pseudoschwagerina或Sphaeroschwagerina在最早的二叠纪期间首次出现,Pamirina和Misellina在Yakhtashian和Bolorian期间首次出现,以及所有schwagerinids和neoschwagerinids在米甸末期灭绝。
Abstract A review of Permian fusuline biostratigraphy is made in this paper in order to improve the correlation of Permian strata globally. Permian fusuline biostratigraphy in the Tethyan and Panthalassan regions can be correlated roughly because the fusulines had good faunal communications between these two regions. However, fusuline faunas from the North American Craton region were devoid of almost all neoschwagerinids and dominated exclusively by schwagerinids during the Guadalupian (Middle Permian) because of the blockage caused by the vast Pangaea supercontinent. This renders the correlation of Middle Permian biostratigraphy and chronostratigraphy between the Tethyan region and North American region challenging. Significant evolutionary key points in fusulines include the first occurrence of Pseudoschwagerina or Sphaeroschwagerina during the earliest Permian, first occurrence of Pamirina and Misellina during the Yakhtashian and Bolorian, and the extinction of all schwagerinids and neoschwagerinids by the end of the Midian.
DOI: --
发表时间: 1942-11
影响因子: 1.4
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