Ultrastructure of Calcareous Dinophytes (Thoracosphaeraceae, Peridiniales) with a Focus on Vacuolar Crystal-Like Particles
Figure 1
Morphological diversity of calcareous coccoid cells.
(SEM). A: Scrippsiella bicarinata (GeoB 411, note the bicarinate tabulation resulting from the fusion of pre- and postcingular plate equivalents). B: Thoracosphaera heimii (CCCM 670, note the small size). C: Scrippsiella trochoidea (GeoB*185, note the spiny surface). D: Calciodinellum operosum (SZN#74, note the holotabulate tabulation). E: Scrippsiella aff. trochoidea (GeoB 283, note the spiny surface). F: Calciodinellum aff. operosum (GeoB 34, note the smooth surface). Scale bar: 10 µm.