Spinidinium densispinatum

densispinatum Stanley, 1965, p.226–227, pl.21, figs.1–5.  Holotype: Stanley, 1965, pl.21, figs.1–3.  Originally (and now) Spinidinium, subsequently Magallanesium.  Taxonomic junior synonym: Spinidinium microceratum, according to Stone (1973, p.53–54).  Sluijs et al. (2009, p.47) retained this species in Spinidinium.  Age: Paleocene.

Parent: Spinidinium