Sentusidinium varispinosum
From dinoflaj2
"?varispinosum" (Sarjeant, 1959, p.338-340, pl.13, fig.7; text-fig.6) Sarjeant and Stover, 1978, p.50. Holotype: Sarjeant, 1959, pl.13, fig.7; text-fig.6; Fauconnier and Masure, 2004, pl.49, fig.8. NOW Impletosphaeridium. Originally Baltisphaeridium (Appendix A), subsequently Tenua Eisenack, thirdly Sentusidinium, fourthly Sentusidinium?, fifthly Cleistosphaeridium, sixthly (and now) Impletosphaeridium. Questionable assignment: Stover and Evitt (1978, p.81). Age: Early Callovian.
Parent: Sentusidinium
