• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Neues Jahrbuch fur Geologie und Palaontologie. Abhandlungen >Palaeobiogeographic aspects of late Barremian to late Albian coral faunas from northern Mexico (Sonora) and the southern USA (Arizona, Texas)
【24h】

Palaeobiogeographic aspects of late Barremian to late Albian coral faunas from northern Mexico (Sonora) and the southern USA (Arizona, Texas)

机译：来自墨西哥北部（索诺拉）和美国南部（得克萨斯州）的巴雷米亚晚期至晚期阿拉伯珊瑚群的古生物地理特征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The taxonomy of Early Cretaceous shallow marine coral faunas from the Bisbee Basin (northwestern Mexico and Arizona, southwestern USA) and the Comanche Platform (Texas, USA) are compared to each other and to coral associations of the same age around the world. The analysis here employs a large, comprehensive computer database on Mesozoic corals. The database is used to develop a uniform palaeogeographic framework for the comparisons (300 palaeo-provinces are distinguished worldwide for the Cretaceous), and a distance matrix cluster analysis of shared presence is performed on the data to correlate coral faunas both within and outside of the study area. The study is based entirely on coral material recently collected in the field and studied in museum collections. Of the 754 coral samples examined, a total of 160 species is identified from 54 sample locations. This large total number is in contrast to the low to moderate number of species found in each locality, with a maximum number of 28 species from one locality in northwestern Mexico. This demonstrates that coral distribution was controlled by regional (even local) factors. Outside of the sample area, the coral faunas show a strong correlation to central Tethyan faunas, with strongest affinities to that of the Iberian Peninsula, and also to eastern Tethys and western Pacific faunas. This argues against the commonly held concept of a distinct New World coral faunal realm, and is explained by a west-to-east orientation of warm oceanic connections and the close proximity of the land masses during the Early Cretaceous.
机译：比较了比斯比盆地（美国西北部的墨西哥和亚利桑那州）和科曼奇平台（美国得克萨斯州）的早白垩纪浅海珊瑚群落的分类学，并与世界上同一年龄的珊瑚协会进行了比较。此处的分析使用了中生代珊瑚的大型综合计算机数据库。该数据库用于开发统一的古地理框架以进行比较（全世界在白垩纪地区有300个古省），并且对数据进行共享矩阵的距离矩阵聚类分析，以关联珊瑚内外的珊瑚动物群。学习区。该研究完全基于最近在野外收集并在博物馆收藏中进行研究的珊瑚材料。在检查的754个珊瑚样本中，从54个样本位置总共鉴定出160种。如此庞大的总数与在每个地区发现的中低数量物种形成对比，在墨西哥西北部的一个地区，最多有28种物种。这表明珊瑚的分布受区域（甚至本地）因素控制。在样本区域之外，珊瑚动物区系与特提斯中部动物区系密切相关，与伊比利亚半岛，特提斯东部和西太平洋动物区系的亲和力最强。这与新世界不同的珊瑚动物界的普遍观念背道而驰，并以白垩纪初期暖洋洋连接的西向东方向和陆地群的紧密接近来解释。

著录项

相似文献

  • 外文文献
  • 中文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号