Time:   smoothingyrs,     stepyrs,     max ageyrs BP    

Geography:   smoothingkm,     extrapolation rangekm,     low resolution, high speed    

Pollen %:    min     max ( -1; max of the taxon, -2; halve max of the taxon)    

    Stop     AD/BC     Mangerud’s boundaries calibrated    

Pollen percentage history visualization by Adam Walanus & Dorota Nalepka

Data: