Guadalupian (Middle Permian) paleobiogeography of the Neotethys Ocean
Guadalupian (Middle Permian) paleobiogeography of the Neotethys Ocean
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DOI：
10.1016/j.gr.2012.08.012
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发表时间：
2013-07
影响因子：
6.1
通讯作者：
L. Angiolini;G. Crippa;G. Muttoni;J. Pignatti
中科院分区：
文献类型：
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作者：
L. Angiolini;G. Crippa;G. Muttoni;J. Pignatti
通过多变量方法（聚类分析、主坐标分析、最小生成树）和地方性简约分析，对来自西西里岛、突尼斯、阿曼、土耳其、伊朗北部、阿富汗中部、喀喇昆仑山脉、盐岭和泰国南部的瓜达卢普阶（中二叠世）腕足动物属的存在/不存在数据矩阵进行了分析。这些不同且独立的古生物地理学方法的应用导致了三个生物省的个性化：华夏省（西西里岛和突尼斯）、西梅里安省（阿曼、土耳其、伊朗北部、盐岭、泰国南部）和跨喜马拉雅省（喀喇昆仑和阿富汗中部）。这些省份已根据古地磁数据进行了古地理重建，我们用这些数据破译了瓜达卢普阶期间控制新特提斯洋腕足动物分布的主要因素。总之，此时的生物省模式是由纬度温度梯度、海洋古洋流和西梅里安地体跨区域气候带的大陆漂移之间复杂的相互作用造成的。
A matrix of presence/absence data of Guadalupian (Middle Permian) brachiopod genera from Sicily, Tunisia, Oman, Turkey, north Iran, central Afghanistan, Karakoram, Salt Range, and south Thailand has been analyzed by multivariate methods (cluster analysis, principal coordinate analysis, minimum spanning trees) and Parsimony Analysis of Endemicity. The application of these different and independent paleobiogeographical methods has led to the individuation of three bioprovinces: the Cathaysian (Sicily and Tunisia), Cimmerian (Oman, Turkey, north Iran, Salt Range, south Thailand) and Transhimalayan (Karakoram and central Afghanistan) provinces. These provinces have been placed on a paleogeographical reconstruction based on paleomagnetic data, which we used to decipher the principal factors that governed brachiopod distribution in the Neotethys Ocean during the Guadalupian. As a conclusion, the pattern of biotic provinces at this time resulted from the complex interplay between latitudinal thermal gradient, oceanic paleocurrents, and the continental drift of the Cimmerian terranes across zonal climate belts.