Baltisphaeridium spinosum var. spinosum Appendix A
From dinoflaj2
"var. spinosum". Autonym. Holotype: White, 1842, pl.4, fig.6. Now redundant. Originally Hystrichosphaeridium spinosum var. spinosum, subsequently Baltisphaeridium spinosum var. spinosum, thirdly Exochosphaeridium spinosum var. spinosum. Parent: Baltisphaeridium spinosum