Striatotheca geometrica Appendix A
From dinoflaj2
geometrica (Deflandre, 1945a, p.64-65, pl.2, figs.2-5) Sarjeant and Stancliffe, 1994, p.46. Holotype: Deflandre, 1945a, pl.2, fig.2. Originally Hystrichosphaeridium geometricum, subsequently Veryhachium geometricum (Appendix A), thirdly Veryhachium trispinosum subsp. geometricum (combination not validly published, Appendix A), fourthly (and now) Striatotheca geometrica. Age: Mid Silurian.
Parent: Striatotheca
