Plate 2 in Taxonomic Revision and Classification of Extant Holococcolithophores Previously Placed in the Genus Anthosphaera Kamptner emend. Kleijne 1991

Plate 2. Syracosphaera marginiporata Knappertsbusch HOL Scale bars = 1μm 1. Complete coccosphere with CFCs that show distal processes with straight sides (arrow a) and lateral columns of crystallites (arrow b). 2. Collapsed coccosphere with BCS that leave multiple openings at the central structure (arrow a) and a broken CFC in which the column is attached to the rim (arrow b). 3. Flattened coccosphere with CFCs that bear high processes with rounded to somewhat straight sides (arrow a), sustained by columns of large crystallites (arrow b). 4. Detailed view of specimen showing a broken CFCs with the two columns of crystals (see arrow) attached to the rim and next to the broken distal process (see arrow).