Hystrichosphaeridium israelianum

"israelianum" Rossignol, 1962, p.132, pl.2, fig.3.  Holotype: Rossignol, 1962, pl.2, fig.3.  NOW Operculodinium.  Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Cleistosphaeridium (combination not validly published), fourthly (and now) Operculodinium, fifthly Cordosphaeridium (combination not validly published).  Taxonomic junior synonyms: Cleistosphaeridium cephalum, according to Jain and Garg (1991, p.78); Operculodinium crassum, according to Edwards and Andrle (1992, p.262) — however, Head (1996b, p.1231) retained Operculodinium crassum; and Hystrichosphaeridium westii (name not validly published), by implication in Wall and Dale (1968a, p.315, as "hystrichosphere type x of West").  Motile equivalent: Peridinium (now Protoceratium) reticulatum Claparède and Lachmann, 1859, questionably according to Wall and Dale (1968c, p.272), and without question according to Matsuoka (1989, p.224).  Age: Pleistocene.

Parent: Hystrichosphaeridium