Late Cretaceous to Eocene calcareous nannofossil distribution near Gubbio, Italy

Using a modified sample preparation technique, we have been able to establish a detailed lower Campanian to upper Eocene nannofossil stratigraphy in the Bottaccione and Contessa...本研究采用改良型样品制备技术，于Bottaccione与Contessa区域中成功建立了一套覆盖坎潘阶早期至始新世晚期的详细超微化石（nannofossil）地层序列……