Cordosphaeridium multispinosum
From dinoflaj2
"multispinosum" Davey and Williams, 1966b, p.89-90, pl.3, fig.6. Holotype: Davey and Williams, 1966b, pl.3, fig.6; Bujak et al., 1980, pl.7, figs.1-2. NOW Amphorosphaeridium?. Originally Cordosphaeridium, subsequently (and now) Amphorosphaeridium?. Age: Early Eocene.
Parent: Cordosphaeridium