Exochosphaeridium spinosum subsp. spinosum
From dinoflaj2
"subsp. spinosum". Autonym. Holotype: White, 1842, pl.4, fig.6. Now redundant. Originally Exochosphaeridium spinosum subsp. spinosum, subsequently Exochosphaeridium? spinosum subsp. spinosum. Parent: Exochosphaeridium spinosum