A stage (13.5–7.5 Ma ago) in the Neogene of California, underlain by the Luisian, overlain by the Delmontian, and roughly contemporaneous with the upper Serravallian, Tortonian, and lower Messinian stages.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。