Surculosphaeridium

SURCULOSPHAERIDIUM Davey et al., 1966, p.160-161.  Emendation: Davey, 1982b, p.15 - however, see Stancliffe and Sarjeant (1990, p.207).  Taxonomic senior synonym: Polystephanosphaera, 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: Sarjeant, 1960a, pl.6, fig.2, as Hystrichosphaeridium cribrotubiferum.

Parent: Family Gonyaulacaceae Subfamily uncertain

Species List:

Surculosphaeridium alagoense
Surculosphaeridium argentinense
Surculosphaeridium basifurcatum
Surculosphaeridium belowii
"Surculosphaeridium calicigerum"
Surculosphaeridium cassospinum
*Surculosphaeridium cribrotubiferum
Surculosphaeridium divarispinosum
Surculosphaeridium granulatum
"Surculosphaeridium granulosum"
Surculosphaeridium longifurcatum
Surculosphaeridium oceaniae
"Surculosphaeridium phoenix"
"Surculosphaeridium polyozum"
Surculosphaeridium scissospinum
Surculosphaeridium spinicongregatum
Surculosphaeridium stella
Surculosphaeridium suggestium
Surculosphaeridium trunculum
Surculosphaeridium vestitum