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Hystrichosphaeridium vestitum
Hystrichosphaeridium vestitum Deflandre, 1938; Emendation: Sarjeant, 1960b, p.397, as Baltisphaeridium vestitum.
Now Surculosphaeridium?. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Surculosphaeridium, fourthly (and now) Surculosphaeridium?, fifthly Multiplicisphaeridium, sixthly Systematophora.
Taxonomic junior synonym: Polystephanosphaera valensii, according to Courtinat (1989, p.173) - however, Stancliffe and Sarjeant (1990, p.209) retained Polystephanosphaera (as and now Systematophora) valensii.
Holotype: Deflandre, 1939a, pl.11, fig.5; Fauconnier and Masure, 2004, pl.74, figs.11-12.
Age: Oxfordian
Now Surculosphaeridium?. Originally Hystrichosphaeridium, subsequently Baltisphaeridium, thirdly Surculosphaeridium, fourthly (and now) Surculosphaeridium?, fifthly Multiplicisphaeridium, sixthly Systematophora.
Taxonomic junior synonym: Polystephanosphaera valensii, according to Courtinat (1989, p.173) - however, Stancliffe and Sarjeant (1990, p.209) retained Polystephanosphaera (as and now Systematophora) valensii.
Holotype: Deflandre, 1939a, pl.11, fig.5; Fauconnier and Masure, 2004, pl.74, figs.11-12.
Age: Oxfordian