Cleistosphaeridium laxabaculum
From dinoflaj2
"laxabaculum" Song Zhichen in Song Zhichen et al., 1985, p.31-32, pl.4, fig.11. Holotype: Song Zhichen et al., 1985, pl.4, fig.11. NOW Impletosphaeridium. Originally Cleistosphaeridium, subsequently (and now) Impletosphaeridium. Age: ?Early Pleistocene.
Parent: Cleistosphaeridium
