Hystrichosphaeridium machaerophorum

"machaerophorum" Deflandre and Cookson, 1955, p.274, pl.9, figs.4,8.  Holotype: Deflandre and Cookson, 1955, pl.9, fig.4.  NOW Lingulodinium.  Originally Hystrichosphaeridium, subsequently Baltisphaeridium (Appendix A), thirdly Cleistosphaeridium (combination not validly published), fourthly (and now) Lingulodinium.  Taxonomic junior synonyms: Cleistosphaeridium disjunctum, according to Reid (1974, p.591); Hystrichosphaeridium ashdodense, according to Wall (1967, p.109); Baltisphaeridium (subsequently Lingulodinium) funginum, Lingulodinium brevispinosum and Lingulodinium sadoense, all according to Kokinos and Anderson (1995, p.162); Hystrichosphaeridium redonense, questionably according to Harland (1977b, p.94) and according to Rochon et al. (1999, p.20).  Motile equivalent: Gonyaulax polyedra Stein, 1883, according to Wall and Dale (1968c, p.271).  Age: Miocene.

Parent: Hystrichosphaeridium