Referral of the Halocypridina Thaumatocypris (Miocene, Australia) to the Cladocopina (Ostracoda, Halocyprida)

B. K. Nadeau in 1955 identified as <i>Thaumatocypris</i> ostracodes from the middle Miocene Glenample Clay of Victoria, southeastern Australia. Nadeau's collection of Ostracoda from the Glenample Clay was located in the collections of the Museum of Victoria, Melbourne. Examination of that material indicates that the Glenample Clay specimens attributed by Nadeau to <i>Thaumatocypris</i> belong to <i>Polycope sanctacatherinae</i> Whatley & Downing 1983. As a result, it is concluded that <i>Thaumatocypris</i> has not been collected in the Miocene of Australia. Furthermore, in a broader  biostratigraphic/palaeobiogeographic context, the result confirms that no member of the Suborder Halocypridina has been reported so far from the Tertiary Period.<br>