Hystrichosphaeridium capitatum
From dinoflaj3
"capitatum" Cookson and Eisenack, 1960b, p.252, pl.39, fig.9. Holotype: Cookson and Eisenack, 1960b, pl.39, fig.9; Fauconnier and Masure, 2004, pl.66, fig.1. NOW Barbatacysta. Originally Hystrichosphaeridium, subsequently Prolixosphaeridium, thirdly Tenua Eisenack, fourthly Batiacasphaera, fifthly (and now) Barbatacysta. Age: Oxfordian–Kimmeridgian.
Parent: Hystrichosphaeridium