High Arctic middle Eocene dinoflagellate cysts

This dataset includes palynological data, notably dinoflagellate cyst occurrences, from middle Eocene strata recovered from Lomonosov Ridge, Arctic Ocean, during IODP Expedition 302 (2004). The dataset forms the basis of the paper 'High Arctic middle Eocene dinoflagellate cysts' by Brinkhuis and Sluijs, published in the Review of Palaeobotany and Palynology. Version 2 differs from Version one regarding the nomenclature of various taxa so it is advised to ignore Version 1 and work with Version 2.本数据集涵盖采自北冰洋罗蒙诺索夫海岭中始新统地层的孢粉学数据，其中核心内容为沟鞭藻囊孢（dinoflagellate cyst）的产出记录，该套地层由国际大洋发现计划（International Ocean Discovery Program, IODP）302次航次于2004年钻探获取。本数据集是Brinkhuis与Sluijs发表于《古植物学与孢粉学论评》（Review of Palaeobotany and Palynology）的论文《北极高纬度中始新世沟鞭藻囊孢》的核心研究基础。版本2与版本1在各类分类群的命名规则上存在差异，因此建议忽略版本1，采用版本2开展相关工作。