Fig. 2: Foraminiferal data.
From: A seasonally ice-free Arctic Ocean during the Last Interglacial

a–f, Downcore variation of planktic foraminifera assemblage composition in the MIS5 interval in the central Arctic Ocean from key cores 96/12-1pc (a), AO16-9PC (b), LRG12-3PC (c), AO16-8GC (d) and AO16-10PC (e). Red colours indicate T. quinqueloba abundance; blue colours indicate N. pachyderma abundance. Star symbols indicate very rare occurrences of Globigerinita uvula. For stratigraphic context, see Extended Data Fig. 6. f, Global benthic δ18O stack for MIS555, with marine isotope substages indicated. g, Global benthic δ18O stack for the past 270 kyr.