Palusphaera Lecal-Schlauder emend. R.E. Norris

Archontikis, Odysseas A. & Young, Jeremy R., 2021, A reappraisal of the taxonomy and biodiversity of the extant coccolithophore genus Palusphaera (Rhabdosphaeraceae, Prymnesiophyceae), Phycologia 60 (6), pp. 589-602 : 595

Genus Palusphaera Lecal-Schlauder emend. R.E. Norris

EMENDED DESCRIPTION: Coccosphere monomorphic and monothecate, with only spine-bearing BCs and no differentiated circum-flagellar coccoliths. BCs flat, with two rim cycles, an outer/upper cycle with nearradial sutures, an inner/lower cycle showing strong sinistral obliquity in proximal view. The radial lath cycle shown by many other Rhabdosphaeraceae is absent; instead, the lamellar cycle fills the central area. The lamellar cycle of tabular elements shows dextrogyral obliquity in distal view and laevogyral obliquity in proximal view. Central process is a spine, variable in shape but without a collar; proximal side with a central pore surrounded by several (usually three) angular nodes.

TYPE SPECIES: Palusphaera vandelii Lecal-Schlauder (1966) emend. R.E. Norris (1984) . The original author published under the name Lecal.