Litosphaeridium? truncigerum (Deflandre, 1937) Davey and Williams, 1969

Now Raetiaedinium. Originally Hystrichosphaeridium, subsequently Litosphaeridium?, thirdly Cordosphaeridium, fourthly Exochosphaeridium, fifthly Pervosphaeridium, sixthly Tityrosphaeridium?, seventhly Florentinia, eighthly Pervosphaeridium?, ninethly (and now) Raetiaedinium.
Tax. jr. synonym of Xanthidium (now Hystrichokolpoma) crassipes Reade, 1839, by implication, according to Yun, 1981, who considered Litosphaeridium? (as Pervosphaeridium) truncigerum to be the sr. synonym. Lentin and Williams, 1985, retained Lithosphaeridium (as Pervosphaeridium) truncigerum as a separate species.
At the time of the transfer, Davey and Williams, 1969, questionably included this species in Litosphaeridium.
Lentin and Williams, 1973, retained this species in Hystrichosphaeridium Deflandre, 1937.
This combination was not validly published in Davey and Williams, 1966, who questionably transferred the species to Litosphaeridium, but did not fully reference the basionym.
Holotype: Deflandre, 1937, pl.13 [al. pl.10], fig.6
Age: Senonian