Stiphrosphaeridium arbustum
From dinoflaj2
arbustum Davey, 1982b, p.17-18, pl.3, figs.1-4. Holotype: Davey, 1982b, pl.3, figs.1-2; Fauconnier and Masure, 2004, pl.73, figs.7-8. Age: Late Ryazanian.
Parent: Stiphrosphaeridium