Oligosphaeridium membranaceum
From dinoflaj2
?membranaceum Jiabo, 1978, p.71-72, pl.26, fig.12. Holotype: Jiabo, 1978, pl.26, fig.12. Originally Oligosphaeridium, subsequently (and now) Oligosphaeridium?. Questionable assignment: Fauconnier and Cornu in Fauconnier and Masure (2004, p.404) as a problematic species. Age: Early Tertiary.
Parent: Oligosphaeridium
