Dataset for \"Millennial-scale variations in Arctic sea ice are recorded in sedimentary ancient DNA of the microalga Polarella glacialis\"

Dataset for \"Sedimentary ancient DNA from the sympagic dinoflagellate Polarella glacialis as a sea ice proxy\". Dataset includes data from AMD16-117Q marine sediment core record (Pgla-DNA ddPCR data, total dinocyst counts, Pgla cyst counts, Imin%, IP25 data); ITS sequences; information on surface sediment samples and their estimated Pgla gene copy numbers; and dinocyst-based MAT sea ice reconstructions