Polystephanephorus sarjeantii
From dinoflaj2
"sarjeantii" Gitmez, 1970, p.291-292, pl.11, fig.4; text-fig.25. Holotype: Gitmez, 1970, pl.11, fig.4; text-fig.25; Fauconnier and Masure, 2004, pl.26, fig.7. NOW Emmetrocysta. Originally Polystephanephorus, subsequently (and now) Emmetrocysta, thirdly Hystrichosphaerina, fourthly Stiphrosphaeridium. Age: Early Kimmeridgian.
Parent: Polystephanephorus