Oligosphaeridium trabeculosum
From dinoflaj3
?trabeculosum Singh, 1983, p.122–123, pl.41, fig.11. Holotype: Singh, 1983, pl.41, fig.11; Fauconnier and Masure, 2004, pl.61, fig.5. Originally Oligosphaeridium, subsequently (and now) Oligosphaeridium?. Questionable assignment: Fauconnier and Cornu in Fauconnier and Masure (2004, p.403). Age: early Cenomanian.
Parent: Oligosphaeridium