Gonyaulacysta jurassica subsp. jurassica var. longicornuta

var. longicornuta Sarjeant, 1982b, p.31–32, pl.5, figs.5–6.  Holotype: Sarjeant, 1982b, pl.5, figs.5–6.  Age: early-middle Kimmeridgian.

Parent: Gonyaulacysta jurassica subsp. jurassica