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.