Genus Semicytherura Wagner, 1957

Museums

Regional Maps

• Semicytherura Wagner, C.W. 1957. Sur les Ostracodes du Quaternaire Récent des Pays-Bas et leur Utilisation dans l'Étude géologiques des Dépots Holocènes. Dissertation Univ. de Paris. 259pp. [80].

  Type species:

   Cythere nigrescens Baird, 1838 (=Semicytherura nigrescens (Baird, 1838)) by original designation.

Distribution

States

New South Wales, South Australia, Victoria, Western Australia

IBRA and IMCRA regions

IMCRA

Central Western Shelf Transition (28), Central Western Shelf Province (29), Southwest Shelf Transition (30), Southwest Shelf Province (31), Great Australian Bight Shelf Transition (32), Spencer Gulf Shelf Province (33), Western Bass Strait Shelf Transition (34), Bass Strait Shelf Province (35), Southeast Shelf Transition (37), Central Eastern Shelf Province (38)

Diagnosis

Carapace elongate-subovate to subrectangular, variable. Posterior end with more or less well-developed caudal process which is situated subcentrally to subdorsally. Valves often with wing-like lateral prolongations. Ornamentation variable. Inner lamella wide anteriorly, narrow in oral region, very wide posteriorly inner margin making strong forward curve before curving back to posterior hinge element. Marginal pore canals moderately numerous, some simple, some bifurcate, all more or less sinusoid or bent. Hinge merodont/entomodont. Normal pores moderately numerous, small, open.

Diagnosis References

Morkhoven, van F.P.C.M. 1963. Post-Palaeozoic Ostracoda, their Morphology, Taxonomy and Economic Use. Amsterdam-London-New York : Elsevier Publishing Company Vol. 2 pp. 1-478. [346]

History of changes