Systematophora placacantha var. curta
From dinoflaj3
"var. curta" (Matsuoka and Bujak, 1988, p.84–86, pl.15, figs.8–11; text-fig.21) Strauss and Lund, 1992, p.173. Holotype: Matsuoka and Bujak, 1988, pl.15, fig.9. NOW Systematophora? curta. Originally Systematophora curta, subsequently (and now) Systematophora? curta, thirdly Systematophora placacantha var. curta. Age: late Oligocene–early Miocene.
Parent: Systematophora placacantha