Gonyaulacysta jurassica subsp. brevis

"subsp. brevis" (Johnson and Hills, 1973, p.206, pl.1, figs.11,14) Lentin and Williams, 1975, p.2151.  Holotype: Johnson and Hills, 1973, pl.1, fig.14.  Originally Gonyaulacysta jurassica var. brevis, subsequently Gonyaulacysta jurassica subsp. brevis.  Taxonomic senior synonym: Gonyaulax (now Gonyaulacysta) jurassica subsp. adecta var. longicornis, according to Sarjeant (1982b, p.31).  Age: ?Late Callovian-Early Oxfordian. Parent: Gonyaulacysta jurassica