The original publication of this article (Noguchi et al. Reference Noguchi, Fujiki, Okuno, Gualtieri, Hatfield, Sarata, Torii, Wada, Nakamura and West2018) contained three errors. Below are the correct sentences.
From the article abstract (p. 1483):
We identified four major pollen assemblage zones (HL-1 to HL-4, in descending order) in the cored sediment. HL-1 was dominated by Ranunculaceae and Empetrum pollen; H-2 was dominated by Poaceae, Ranunculaceae, and Empetrum pollen; HL-3 was dominated by Poaceae and Empetrum pollen; and HL-4 was dominated by Poaceae, Cyperaceae, Licopodium, and Empetrum pollen.
From the section Radiocarbon Dating and Sedimentation Rate (p. 1487):
Okuno et al. (Reference Okuno, Wada, Nakamura, Gualtieri, Brenn, Dixie and Torii2012) and Krawiec et al. (Reference Krawiec, Kaufman and Vaillencourt2013) reported eruption ages of 0.4, 3.6, 6.0, and 9.5 cal ka BP for 40YR, YBO, ITM, and MAN, respectively.
From the section HL-4 (233–176 cm; 11.8–9.5 cal ka BP) (p. 1487):
Sphagnaceae spores increased beneath the MAN layer.
The publisher apologizes for the errors.