Thaumatocyprididae Müller 1906

Kornicker, Louis S., Iliffe, Thomas M. & Harrison-Nelson, Elizabeth, 2007, Ostracoda (Myodocopa) from Anchialine Caves and Ocean Blue Holes, Zootaxa 1565 (1), pp. 1-151 : 24-25

Family Thaumatocyprididae Müller 1906

Composition. This family includes two genera known only from the Permian ( Thaumatomma Kornicker &

Sohn 1976) and Mesozoic ( Pokornyopsis Kozur 1974 ) and three known from the Holocene: Thaumatocypris Müller 1906 ; Thaumatoconcha Kornicker & Sohn 1976 ; and Danielopolina Kornicker & Sohn 1976 .

Distribution. Worldwide ( Fig. 6 ).

Discussion. When Kornicker & Sohn (1976) proposed the two genera Thaumatoconcha and Danielopolina , the former was known from eight species, the latter from two species, and Thaumatocypris , the third genus in the family, from one species. At present Thaumatoconcha includes 10 species, Danielopolina 12 species, and Thaumatocypris two species. Most of the characters used by Kornicker & Sohn (1976: 24, 93) to distinguish the three genera no longer hold. A distinguishing character that persists is a difference in the number of bristles on the exopod of the sixth limb: Thaumatoconcha with three long bristles, Danielopolina with two long bristles, and Thaumatocypris with one long bristle and one short spine.

Figures

FIGURE 6. Worldwide distribution of stygobitic halocyprid ostracode species from the genera Danielopolina (Dan.), Deeveya (Deev.) and Spelaeoecia (Spel.). Map from Online Map Creation at: http://www.aquarius.ifm.geomar.de