Oligosphaeridium abaculum
From dinoflaj3
abaculum Davey, 1979a, p.428,430,432–433, pl.48, figs.1–6; pl.49, figs.1–7; pl.50, figs.1,4,10–11; text-figs.1–2. Holotype: Davey, 1979a, pl.49, figs.1,3; Fauconnier and Masure, 2004, pl.56, figs.1–3. Age: Barremian–early Albian.
Parent: Oligosphaeridium