Marine Isotope Stage definitions and sample sizes in the study.

MIS definitions was made loosely under influence by Taylor & Aitken [89], though constricted by sample size issues. The short transitional period MIS 1/2 was created due to a high concentration of sites dated to this time and is overlapped by a few sites in MIS 2 that have large date range estimates, causing both MIS categories to have the same end date. Sample size states the number of individual sites or stratigraphic layers for each period included in the analyses of the Western Palearctic and Northwestern European subregion, respectively.