Shublikodinium verrucosum subsp. exsculptum

"subsp. exsculptum" (Wiggins, 1973, p.5, pl.4, fig.4) Lentin and Williams, 1973, p.125.  Holotype: Wiggins, 1973, pl.4, fig.4.  Originally Shublikodinium verrucosum var. exsculptum, subsequently Shublikodinium verrucosum subsp. exsculptum.  Taxonomic senior synonym (at specific rank): Shublikodinium (as and now Rhaetogonyaulax) arcticum, according to Stover and Evitt (1978, p.219).  Age: Late Triassic. Parent: Shublikodinium verrucosum