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Progress in Earth and Planetary Science
Fig. 11 | Progress in Earth and Planetary Science

Fig. 11

From: Paleoceanography and dinoflagellate cyst stratigraphy across the Lower–Middle Pleistocene Subseries (Calabrian–Chibanian Stage) boundary at the Chiba composite section, Japan

Fig. 11

Dinoflagellate cysts from the Chiba composite section. Max. dia. = maximum diameter. EF = England Finder reference. a–c Selenopemphix quanta, antapical view at upper, mid-, and lower foci; central body width 75 μm, height 76 μm; sample TB2 97, slide 3 (20 μm) MJH, EF N13/3. d, e Selenopemphix nephroides, polar view at mid- and lower foci; cyst max. dia. 58 μm; sample TB 66, slide 2 (10 μm), EF G36/3. f–i Selenopemphix undulata; f, g antapical view at upper and lower foci showing weak cingular crest undulations; cyst width 49 μm; sample TB 12, slide 1 (20 μm), EF L29/3; h, i antapical view at upper and lower foci showing pronounced cingular crest undulations; cyst max. dia. 56 μm; sample TB 114, slide 1 (10 μm), EF O33/1

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