Skip to main content
Progress in Earth and Planetary Science
Fig. 8 | Progress in Earth and Planetary Science

Fig. 8

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

Fig. 8

Dinoflagellate cysts from the Chiba composite section. Max. dia. = maximum diameter. EF = England Finder reference. a–c Pyxidinopsis reticulata, unknown view at upper through mid-foci; max. dia. (excluding ornament) 35 μm, max. crest height ~ 1.0 μm; sample TB 16, slide 1 (10 μm), EF S21/1. d, e Operculodinium centrocarpum sensu stricto, view uncertain, upper and mid-focus; processes have expanded fibrous bases and aculeate tips; central body wall ~ 1.0 μm thick with thick spongy-fibrous periphragm; central body length 59 μm; sample TB 78, slide 2 (10 μm), EF H20/1. f–i Operculodinium israelianum, apical? view; upper through mid-foci; note solid fibrous processes that may be acuminate or minutely expanded distally; central body max. dia. 45 μm; sample TB 88, slide 2 (10 μm), EF W37/4. j–l cyst of Protoceratium reticulatum, dorsal view at upper, slightly lower, and mid-foci; central body max. dia. 37 μm; sample TB2 61, slide 1 (10 μm), EF O18/3

Back to article page