Rhynchodiniopsis cladophora subsp. isovalvata

subsp. isovalvata (Klement, 1960, p.37-38, pl.4, figs.5-9; text-fig.17) Below, 1981a, p.118.  Holotype: Klement, 1960, pl.4, figs.5-6.  Originally Gonyaulax cladophora subsp. isovalvata (Appendix B), subsequently Gonyaulacysta cladophora subsp. isovalvata, thirdly Hystrichogonyaulax cladophora subsp. isovalvata, fourthly (and now) Rhynchodiniopsis cladophora subsp. isovalvata.  Taxonomic senior synonym: Gonyaulax (as Rhynchodiniopsis) cladophora subsp. cladophora, by implication in Brenner (1988, p.72), who listed this subspecies as a taxonomic junior synonym of the species Rhynchodiniopsis cladophora - however, Lentin and Williams (1993, p.566) retained Gonyaulax (as Rhynchodiniopsis) cladophora subsp. isovalvata.  Age: Early Kimmeridgian. Parent: Rhynchodiniopsis cladophora