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Exochosphaeridium truncigerum

"Exochosphaeridium truncigerum" (Deflandre, 1937b, p.71-72, pl.13 [al. pl.10], figs.6-7) Davey, 1978, p.894.

TYPE: Holotype: Deflandre, 1937b, pl.13 (al. pl.10), fig.6.

HISTORY: NOW: Raetiaedinium. Originally Hystrichosphaeridium, subsequently Litosphaeridium?, thirdly Cordosphaeridium, fourthly Exochosphaeridium, fifthly Pervosphaeridium, sixthly Tityrosphaeridium?, seventhly Florentinia, eighthly Pervosphaeridium?, ninthly (and now) Raetiaedinium.

SYNONYM(S): Taxonomic senior synonym: Xanthidium (now Hystrichokolpoma) crassipes Reade, 1839, by implication in Yun Hyesu (1981, p.27), who considered Exochosphaeridium (as Pervosphaeridium) truncigerum to be the senior synonym - however, Lentin and Williams (1985, p.282) retained Hystrichosphaeridium (as Pervosphaeridium) truncigerum.

AGE: Senonian.


Infraspecific taxa:


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