Baltisphaeridium varispinosum Appendix A

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"varispinosum" Sarjeant, 1959, p.338, pl.13, fig.7; text-fig.6.  Holotype: Sarjeant, 1959, pl.13, fig.7; text-fig.6; Fauconnier and Masure, 2004, pl.49, fig.8.  NOW Impletosphaeridium.  Originally Baltisphaeridium, subsequently Tenua Eisenack, thirdly Sentusidinium, fourthly Sentusidinium?, fifthly Cleistosphaeridium, sixthly (and now) Impletosphaeridium.  Age: early Callovian.

Parent: Baltisphaeridium_Appendix A