Maduradinium pentagonum var. ovale Cookson and Eisenack, 1982

Now Maduradinium pentagonum ssp. ovale. Originally Maduradinium pentagonum var. ovale, subsequently (and now) Maduradinium pentagonum ssp. ovale.
Holotype: Cookson and Eisenack, 1982, pl.1, fig.16
Age: Senonian