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Hexasphaera
From Fensome et al., 2019:
"Hexasphaera", Clarke and Verdier, 1967, p.42.
Name illegitimate -- nomenclatural senior synonym: Callaiosphaeridium Davey and Williams, 1966b, which has the same type.
Junior homonym: Hexasphaera Keupp, 1987.
Type: Deflandre and Courteville, 1939, pl.4, fig.1, as Hystrichosphaeridium asymmetricum.
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Original description: [Clarke and Verdier, 1967]:
Diagnosis:
Dinoflagellate cyst with tabulation consisting of one six-sided apical plate, one six-sided antapical plate joined by three large plates which are both pre- and post-cingular in position.
Archaeopyle apical.
Two types of processes present, one series of which is large and hollow while the other consists of smaller, solid appendages. Both types have expanded or bifurcating tops.
"Hexasphaera", Clarke and Verdier, 1967, p.42.
Name illegitimate -- nomenclatural senior synonym: Callaiosphaeridium Davey and Williams, 1966b, which has the same type.
Junior homonym: Hexasphaera Keupp, 1987.
Type: Deflandre and Courteville, 1939, pl.4, fig.1, as Hystrichosphaeridium asymmetricum.
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Clarke and Verdier, 1967]:
Diagnosis:
Dinoflagellate cyst with tabulation consisting of one six-sided apical plate, one six-sided antapical plate joined by three large plates which are both pre- and post-cingular in position.
Archaeopyle apical.
Two types of processes present, one series of which is large and hollow while the other consists of smaller, solid appendages. Both types have expanded or bifurcating tops.