Back
Polystephanosphaera
From Williams et al., 2017:
[Polystephanosphaera, Sarjeant, 1960a, p. 140-142
Tax. jr. syn.: Surculosphaeridium, by implication in Courtinat (1989, p.173), who considered the "type species", Polystephanosphaera valensii to be a taxonomic junior synonym of Hystrichosphaeridium (as and now Surculosphaeridium) vestitum - however, Stancliffe and Sarjeant (1990, p.207-208) retained the two species, as well as the genus Surculosphaeridium.
Type species: Polystephanosphaera valensii, Sarjeant, 1960a (pl.6, fig.4; text-fig.3b)]
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Sarjeant, 1960]:
Diagnosis:
Shell sphaeroidal, bearing processes of variable character but always solid or with closed tips, whose points of origin are arranged in rings. The bases of adjacent processes may be coalescent: and adjacent processes may linked by traberculae at points along their length or at their tip, all processes of each ring sometimes being linked together by a single traberculae.
[Polystephanosphaera, Sarjeant, 1960a, p. 140-142
Tax. jr. syn.: Surculosphaeridium, by implication in Courtinat (1989, p.173), who considered the "type species", Polystephanosphaera valensii to be a taxonomic junior synonym of Hystrichosphaeridium (as and now Surculosphaeridium) vestitum - however, Stancliffe and Sarjeant (1990, p.207-208) retained the two species, as well as the genus Surculosphaeridium.
Type species: Polystephanosphaera valensii, Sarjeant, 1960a (pl.6, fig.4; text-fig.3b)]
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Original description: [Sarjeant, 1960]:
Diagnosis:
Shell sphaeroidal, bearing processes of variable character but always solid or with closed tips, whose points of origin are arranged in rings. The bases of adjacent processes may be coalescent: and adjacent processes may linked by traberculae at points along their length or at their tip, all processes of each ring sometimes being linked together by a single traberculae.