Echinidinium aculeatum

"aculeatum" Zonneveld, 1997, p.328–329, pl.3, figs.1–5; text-figs.5A–B.  Name not validly published: no Latin description provided.  Holotype: Zonneveld, 1997, pl.3, figs.1–3.  The holotype is from a sediment trap and does not have a stratigraphic context; hence it must be treated as an extant form rather than a fossil, its name requiring a Latin diagnosis for validation (Head, 2003a, p.171–172).  Age: Holocene.

Parent: Echinidinium