Cleistosphaeridium tenue
From dinoflaj2
"tenue" Harris, 1974, p.164, pl.2, figs.7-9. Holotype: Harris, 1974, pl.2, figs.8-9. NOW Sepispinula?. Originally Cleistosphaeridium, subsequently Impletosphaeridium, thirdly (and now) Sepispinula?. Age: Paleocene.
Parent: Cleistosphaeridium
