Hystrichosphaeridium sylhetii

"?sylhetii" Baksi, 1962, p.17, fig.26. Holotype: Baksi, 1962, fig.26. NOW Baltisphaeridium (Appendix A). Originally Hystrichosphaeridium, subsequently (and now) Baltisphaeridium (Appendix A), thirdly Hystrichosphaeridium?. Questionable assignment: Stover and Evitt (1978, p.56) as a problematic species. Age: Eocene.