Lithodinia mitra

"mitra" (Dürr, 1987, p.74,77, figs.3a–b; fig.4, nos.3–6; fig.6, nos.1–3,5) Williams et al., 1993, p.55.  Holotype: Dürr, 1987, fig.4, no.3; Dürr, 1988, pl.1, fig.5.  NOW Semicavidinium.  Originally Meiourogonyaulax, subsequently Lithodinia, thirdly (and now) Semicavidinium.  N.I.A.  Age: middle Kimmeridgian.

Parent: Lithodinia