Impletosphaeridium ligospinosum
From dinoflaj2
ligospinosum (de Coninck, 1969, p.50, pl.15, figs.9-19) Islam, 1983a, p.240. Holotype: de Coninck, 1969, pl.15, fig.19; Fauconnier and Masure, 2004, pl.49, fig.7. Originally Baltisphaeridium (Appendix A), subsequently (and now) Impletosphaeridium. Age: Early Eocene.
Parent: Impletosphaeridium
