Post-extinction brachiopod faunas from the Late Permian Wuchiapingian coal series of South China
Post-extinction brachiopod faunas from the Late Permian Wuchiapingian coal series of South China
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DOI：
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发表时间：
2005
影响因子：
1.8
通讯作者：
Zhong‐Qiang Chen;M. Campi;G. Shi;K. Kaiho
中科院分区：
文献类型：
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作者：
Zhong‐Qiang Chen;M. Campi;G. Shi;K. Kaiho
本文记述了华南晚二叠世吴家坪期龙潭组煤系中腕足动物11属14种。其中，龙潭组底界的贝壳动物群被认为是华南瓜达鲁普期/乐平期（G/L）生物大灭绝后贝壳动物群恢复的开始。灭绝后的腕足动物群在吴家坪阶的特点是存在许多拉撒路类群，幸存者，和新起源的类群。这些能适应生活习性的个体对G/L危机的抵抗力相对较强。灭绝后的动物群，包括幸存者和起源于恢复期的元素，没有生活习性偏好，但他们都适应了各种新空出的壁龛在晚二叠世海洋。根据龙潭组模式标本的重新鉴定和新的地形模式材料，描述了两个新种：Meekella beipei ensis和Niutoushania chongqingensis，并订正了中国两个属：Niutoushania和Chengxianoproductus。
This paper describes fourteen brachiopod species in eleven genera from the Late Permian Wuchiapingian Coal Series (Lungtan Formation) of South China. Of these, the shell bed fauna from the basal Lungtan Formation is interpreted to represent the onset of the recovery of shelly faunas in the aftermath of the Guadalupian/Lopingian (G/L) mass extinction in South China. The post-extinction brachiopod faunas in the Wuchiapingian are characterized by the presence of numerous Lazarus taxa, survivors, and newly originating taxa. These elements capable of adapting their life habits were relatively more resistant to the G/L crisis. The post-extinction faunas, including survivors and the elements originating in the recovery period, have no life habit preference, but they were all adapted to a variety of newly vacated niches in the Late Permian oceans. Two new species, Meekella beipeiensis and Niutoushania chongqingensis, are described, and two Chinese genera, Niutoushania and Chengxianoproductus, are emended based on re-examination of the type specimens and new topotype materials from the Lungtan Formation.