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Rudists (Bivalvia) from a Cretaceous Platform in Northern Egypt: Taxonomy and Paleobiogeography
Acta Geologica Sinica-English Edition ( IF 3.5 ) Pub Date : 2021-03-31 , DOI: 10.1111/1755-6724.14712 Yasser Salama 1 , Jamaan S. Ajarem 2 , Ahmed A. Allam 3 , Ahmed M. Almalki 2
Acta Geologica Sinica-English Edition ( IF 3.5 ) Pub Date : 2021-03-31 , DOI: 10.1111/1755-6724.14712 Yasser Salama 1 , Jamaan S. Ajarem 2 , Ahmed A. Allam 3 , Ahmed M. Almalki 2
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New well-preserved rudist materials come from the Barremian–Turonian marine formations in the Yelleg, Minsherah, Maaza, and Raghawi sections in North Sinai, northern Egypt. There, 17 discovered rudist species belonging to 13 genera and seven taxonomic families are described in detail as follows: Eoradiolites plicatus (Conrad), Eoradiolites liratus (Conrad), Praeradiolites ponsianus (d'Archiac), Archaeoradiolites sp., Bournonia africana Douvillé, Bournonia fourtaui Douvillé, Biradiolites lombricalis (d'Orbigny), Biradiolites zumoffeni Douvillé, Radiolites lewyi lewyi Parnes, Radiolites sauvagesi (d'Hombres-Firmas), Durania arnaudi (Choffat), Toucasia carinata (Matheron), Toucasia sp., Neocaprina raghawiensis Steuber and Bachmann, Sellaea sp., Ichthyosarcolites sp. and Horoiopleura sp.. The Cenomanian deposits in the northern Eastern desert of Egypt only contain E. liratus. The domination of the Cenomanian rudist species in North Sinai, however, is attributed to changes in the platform, which passes mainly from carbonate in the north to siliciclastics in the south. The presence of Horiopleura sp. in the late Barremian–early Aptian deposits is documented for the first time, which suggests the expansion of taxa of the genus Horiopleura Douvillé to North Sinai during this interval. The age of the rudist species is documented from the late Barremian–Turonian formations, with their geographic distribution in the Mediterranean region considered.
中文翻译：
来自埃及北部白垩纪平台的 Rudists (Bivalvia)：分类学和古生物地理学
新的保存完好的 rudist 材料来自埃及北部北西奈半岛的 Yelleg、Minsherah、Maaza 和 Raghawi 剖面的 Barremian-Turonian 海相地层。在那里，发现了属于 13 个属和 7 个分类科的 17 个已发现的 rudist 物种，详细描述如下：Eoradiolites plicatus (Conrad)、Eoradiolites liratus (Conrad)、Praeradiolites ponsianus (d'Archiac)、Archaaeoradiolites sp.、Bournonia Africana Douvillé、Bournonia Fourtaui Douvillé，Biradiolites lombricalis (d'Orbigny)，Biradiolites zumoffeni Douvillé，Radiolites lewyi lewyi Parnes，Radiolites sauvagesi (d'Hombres-Firmas), Durania arnaudi (Choffat), Toucasia carinata (Matheron), Toucasia sp., Neocaprina raghawiensis Steuber and Bachmann, Sellaea sp., Ichthyosarcolites sp. 和Horoiopleura sp.。埃及东部沙漠北部的 Cenomanian 矿床仅含有E. liratus。然而，北西奈半岛 Cenomanian rudist 物种的优势在于平台的变化，该平台主要从北部的碳酸盐岩到南部的硅质碎屑岩。Horiopleura的存在sp。在巴雷姆晚期-早期阿普提亚沉积物中首次被记录，这表明在此期间Horiopleura Douvillé属的分类群扩展到北西奈半岛。rudist 物种的年龄是从巴勒姆晚期-图隆阶地层中记录的，并考虑了它们在地中海地区的地理分布。
更新日期：2021-03-31
中文翻译：
来自埃及北部白垩纪平台的 Rudists (Bivalvia)：分类学和古生物地理学
新的保存完好的 rudist 材料来自埃及北部北西奈半岛的 Yelleg、Minsherah、Maaza 和 Raghawi 剖面的 Barremian-Turonian 海相地层。在那里，发现了属于 13 个属和 7 个分类科的 17 个已发现的 rudist 物种，详细描述如下：Eoradiolites plicatus (Conrad)、Eoradiolites liratus (Conrad)、Praeradiolites ponsianus (d'Archiac)、Archaaeoradiolites sp.、Bournonia Africana Douvillé、Bournonia Fourtaui Douvillé，Biradiolites lombricalis (d'Orbigny)，Biradiolites zumoffeni Douvillé，Radiolites lewyi lewyi Parnes，Radiolites sauvagesi (d'Hombres-Firmas), Durania arnaudi (Choffat), Toucasia carinata (Matheron), Toucasia sp., Neocaprina raghawiensis Steuber and Bachmann, Sellaea sp., Ichthyosarcolites sp. 和Horoiopleura sp.。埃及东部沙漠北部的 Cenomanian 矿床仅含有E. liratus。然而，北西奈半岛 Cenomanian rudist 物种的优势在于平台的变化，该平台主要从北部的碳酸盐岩到南部的硅质碎屑岩。Horiopleura的存在sp。在巴雷姆晚期-早期阿普提亚沉积物中首次被记录，这表明在此期间Horiopleura Douvillé属的分类群扩展到北西奈半岛。rudist 物种的年龄是从巴勒姆晚期-图隆阶地层中记录的，并考虑了它们在地中海地区的地理分布。
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