Gonyaulacysta perforobtusa

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"perforobtusa" Duxbury, 1977, p.39, pl.1, fig.1; text-fig.13.  Holotype: Duxbury, 1977, pl.1, fig.1; text-fig.13; Jan du Chêne et al., 1986a, pl.44, figs.1-2.  NOW Wrevittia?.  Originally Gonyaulacysta, subsequently Gonyaulacysta?, thirdly Wrevittia?.  Questionable assignment: Sarjeant (1982b, p.28) - however, Jan du Chêne et al. (1986a, p.131) included the species in Gonyaulacysta without question.  Age: Hauterivian.

Parent: Gonyaulacysta