Stomiosphaera minutissima
From dinoflaj3
"minutissima" (Colom, 1935, p.12, pl.2, fig.8; text-fig.4a [four specimens]) Durand Delga, 1957, p.161. Holotype: not designated. NOW Colomisphaera. Originally Fibroaesphaerae (generic name not validly published; Appendix A), subsequently Stomiosphaera, thirdly (and now) Colomisphaera, fourthly Schizosphaerella. Age: Late Early Jurassic.
Parent: Stomiosphaera