Macrofossil Biostratigraphy at Cretaceous-Tertiary Boundary Sections, Western Europe

本研究将在西班牙和法国保存完好的马斯特里赫特时代地层剖面上研究菊石类、双壳类和棘足类的生物地层学和灭绝模式。标本将从地层学上收集。还将收集用于微化石处理的大量样品。这些收集的结果将允许测试关于这些剖面中大型化石灭绝的时间和模式的假设。通过整合新发现的大型化石的信息，还将提出一种精细的生物地层学。此外，还将从ODP岩心样本中收集双壳类的壳棱镜，以验证这些白垩纪双壳类在世界海洋中的菊石之前灭绝的假设。

This research will examine the biostratigraphy and extinction patterns of ammonites, inoceramid bivalves, and echinoids at well-preserved stratigraphic sections of Maastrichtian age located in Spain and France. Specimens will be collected stratigraphically. Bulk samples to be processed for microfossils will also be collected. The results of these collections will allow testing of hypotheses concerning the timing and pattern of macrofossil extinctions in these sections. A refined biostratigraphy will also be proposed, by integrating information from new macrofossil occurrences. Inoceramus (Bivalvia) shell prisms will also be collected from ODP core samples to test the hypothesis that these Cretaceous bivalves became extinct prior to the ammonites in the world's oceans.