Hystrichosphaeridium var. deflandrei Lejeune-Carpentier, 1941

Now Fibrocysta? deflandrei. Originally Hystrichosphaeridium spinosum var. deflandrei, subsequently Baltisphaeridium spinosum var. deflandrei, thirdly Exochosphaeridium spinosum var. deflandrei, fourthly Exochosphaeridium spinosum ssp. deflandrei, fifthly Exochosphaeridium? spinosum ssp. deflandrei sixthly (and now) Fibrocysta? deflandrei. See also Cordosphaeridium spinosum var. deflandrei (combination not validly published).
Holotype: Lejeune-Carpentier, 1941 fig.6; Lejeune-Carpentier and Sarjeant, 1981, pl.4, figs.5-6, text-fig.8
Age: Late Cretaceous