Echinidinium euaxum

euaxum (Head, 1993, p.24,26, fig.16, nos.1–8,11; fig.26, no.4) Head et al., 2001, p.631. Holotype: Head, 1993, fig.16, no.11. Originally Algidasphaeridium?, subsequently (and now) Echinidinium. This combination was not validly published in Zonneveld (1997, p334) since the generic name was not validated until 2001. Age: latest Pliocene.