Abstract The detailed examination of the ostracod faunal content in the Maastrichtian-Paleocene succession of Teneida section, Dakhla Oasis, Western Desert, Egypt, yielded 36 ostracod species and subspecies assigned to 25 genera. Most of the species are recovered from the Maastrichtian-Danian interval. Four groups of taxa are differentiated, Maastrichtian taxa, taxa crossing the K/Pg boundary, early Paleocene taxa and early to late Paleocene taxa. Comparison of the species record in the present section with previous records in and outside Egypt implies a remarkable faunal turnover across the K/Pg boundary where taxa characterizing the Maastrichtian and Paleocene are respectively revealed. Whereas the ostracod assemblages found in the Maastrichtian indicate inner to middle neritic settings, the assemblages recorded in the Paleocene reflect deposition in middle to outer neritic settings. The South Tethyan identity of the present fauna during the Maastrichtian-Paleocene is reflected in the wide geographic distribution of many of the recorded species in different areas of North Africa and the Middle East. The less ostracod faunal similarity between the southern Tethys and the West African basins during the Maastrichtian-Selandian compared with the Thanetian is emphasized by the presence only few of the recorded taxa in common with West Africa.

中文翻译：

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来自埃及西部沙漠达赫拉绿洲 Teneida 剖面的马斯特里赫特-古新世 Ostracoda：系统学、生物地层学、古水深测量学和古生物地理学

摘要 通过对埃及西部沙漠达赫拉绿洲 Teneida 剖面马斯特里赫特-古新世序列中介形动物群的详细研究，发现了 36 个介形动物种和亚种，归属于 25 属。大多数物种是从马斯特里赫特-达尼亚间隔恢复的。分为四组分类群，马斯特里赫特分类群，跨越 K/Pg 边界的分类群，早古新世分类群和早到晚古新世分类群。将本节中的物种记录与埃及境内外的先前记录进行比较，表明跨越 K/Pg 边界的显着动物群更替，其中分别揭示了表征马斯特里赫特和古新世的分类群。而在马斯特里赫特发现的介形虫组合表明内到中浅海环境，在古新世记录的组合反映了中到外浅海环境的沉积。马斯特里赫特-古新世时期现存动物群的南特提斯特征反映在北非和中东不同地区的许多记录物种的广泛地理分布上。马斯特里赫特-塞兰德时期的南部特提斯和西非盆地之间的介形动物群相似性与塔内特相比较少，这通过记录的分类群中与西非相同的很少而得到强调。