FIGURES 65–70 in Climate-related morphological changes in Pantocsekiella (Mediophyceae) spanning 0-1.2 Ma in the Lake El'gygytgyn, northeastern Russia including Pantocsekiella elgygytgynensis sp. nov.

FIGURES 65–70. Representative valves of size class 4 (>15 µm). Fig. 65) external valve from 190.5 ka (LZ9-138), Fig. 66) internal valve from 198.2 ka (LZ9-155), Fig. 67) external valve of P. elgygytgynensis from 238.5 ka (LZ10-227), Fig. 68) external valve of P. elgygytgynensis from 406.7 ka (DC550), Fig. 69) internal valve of P. elgygytgynensis from 333.2 ka (LZ12-176), Fig. 70) P. elgygytgynensis initial valve internal view 302.5 ka (LZ12-54).