Stomiosphaera minutissima
From dinoflaj2
"minutissima" (Colom, 1935, p.12, pl.2, fig.8; text-fig.4a [four specimens]) Durand Delga, 1957, p.161. Name not validly published: generic name not validly published and holotype not designated. NOW Schizosphaerella. Originally Fibrosphaera (name not validly published; Appendix A), subsequently Stomiosphaera (name not validly published), thirdly Colomisphaera (name not validly published), fourthly Schizosphaerella (name not validly published). Designation of a holotype was a requirement under the I.C.Z.N. at the time that Colom (1935) proposed this name. Age: late Early Jurassic.
Parent: Stomiosphaera