Fig. 1

(adapted from Vaks et al., 202556).
(A) Location of the Taba Ba’astakh sampling site (red star), Samoylov Research Station, Tiksi, and relevant Miocene palaeoclimate reconstruction sites: Temmirdekh-khaj and Omoloy from Popova et al. (2012)49, overlain with vegetation type64 (Map created in Esri ArcMap version 10.5.1, copyright Esri, Garmin, GEBCO, NOAA NGDC, and other contributors), (B) Photograph of the Taba Ba’astakh cliffs (approx. height is 120 m) with locations of cave remnants outlined in yellow dashed lines.