Phthanoperidinium alectrolophum

alectrolophum Eaton, 1976, p.295,298, pl.17, figs.10-11; text-fig.23A.  Holotype: Eaton, 1976, pl.17, fig.11; Bujak et al., 1980, pl.5, fig.9.  Age: ?Mid Eocene (see Aubry, 1986).

Parent: Phthanoperidinium