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(A–F) Polar views of fossil pollen. (G–I) Polar views of extant pollen. (A, B) Profen MT2. (C) Profen MT3. (D, E) Profen MT4. (F). Profen MT5. (G) Peraxilla tetrapetala. (H) Amylotheca sp. (I) Ligaria cuneifolia. Scale bar: (A–I) = 10 μm.
