Thoracosphaera granulosa
From dinoflaj2
"granulosa" Kamptner, 1963, p.178-179, pl.5, fig.28. Holotype: Kamptner, 1963, pl.5, fig.28. Taxonomic senior synonym: Syracosphaera (as and now Thoracosphaera) heimii, according to Fütterer (1976, p.130). Age: Paleocene.
Parent: Thoracosphaera