Hystrichosphaera hirsuta forma varians
"forma varians" Wetzel, 1933b, p.47-48, pl.4, figs.27-29. Holotype: not designated. Lectotype: Wetzel, 1933b, pl.4, fig.29, designated by Lentin and Williams (1989, p.78)). Name not validly published: the species name Hystrichosphaera hirsuta is not validly published. NOW Coronifera striolata? subsp. varians. Originally Hystrichosphaera hirsuta forma varians (name not validly published), subsequently Baltisphaeridium hirsutum forma varians (name not validly published; Appendix A), thirdly Operculodinium? hirsutum subsp. varians (name not validly published), fourthly (and now) Coronifera striolata subsp. varians?. This name (as Hystrichosphaera hirsuta forma rarians) was also cited in Wetzel (1932, caption to pl.3, fig.11 - p.144). Age: Late Cretaceous.Hystrichosphaera hirsuta