Aidelocysta J.B. Riding, R. Helby & J. Stevens in J.B. Riding & R. Helby, 2001 † (original description)
Ampulladinium J.B. Riding, R. Helby & F.M. Parker in Riding & Helby, 2001 † (original description)
Belowia J.B. Riding & R. Helby, 2001 † (original description)
Bonbonadinium R. Helby & A.D. Partridge, 2001 † (original description)
Cygnusicysta J.B. Riding & R. Helby, 2001 † (original description)
Fosteria J.B. Riding & R. Helby, 2001 † accepted as Fostericysta J.B. Riding, 2006 † (original description)
Hadriana J.B. Riding & R. Helby, 2001 † (original description)
Mombasadinium J.B. Riding & R. Helby, 2001 † (original description)
Skuadinium J.B. Riding & R. Helby, 2001 † (original description)
Striatodinium J.B. Riding & R. Helby, 2001 † (original description)
Tringadinium J.B. Riding & R. Helby, 2001 † (original description)
Voodooia J.B. Riding & R. Helby, 2001 † (original description)
Woodinia J.B. Riding & R. Helby, 2001 † (original description)