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出 处:《Episodes》2008年第2期251-254,共4页地质幕(英文版)
摘 要:Eight marine stages for the Quaternary have been defined in Italy starting from 1872 (Sicilian of Doderlein) to 1979 (Selinuntian of Ruggieri and Sprovieri). The definition of all these stages was based essentially on invertebrate paleontology, initially from the study of pelecypods and gastropods, but also of corals, ostracods, benthic foraminifers and, more recently, on planktonic foraminifers and calcareous nannofossils. The 1948 International Geological Congress held in London decided to search for a locality in Italy to define the Neogene/Quaternary boundary in correspondence with the first appearance of the "northern guests" in the Mediterranean. The Vrica section of Calabria was selected for defining the GSSP of the Pleistocene in 1984.
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