Upper Cretaceous Ostracoda from the Carnarvon Basin, Western Australia

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BATE, R. H. 1972. Upper Cretaceous Ostracoda from the Carnarvon Basin, Western Australia. Special Papers in Palaeontology10, 1–85.

R. H. Bate

Coniacian, Santonian, and Campanian ostracod faunas, comprising some 54 species, are described from the Carnarvon Basin, Western Australia. Of these, 9 genera and 32 species are new; 2 genera and 22 species, also new, are left under open nomenclature.

The ostracod fauna is identified as a Southern Hemisphere fauna, of which 11 genera are unknown in the north. A twelfth genus, Oculocytheropteron nov., is not yet confirmed as being entirely a southern form. 1 cosmopolitan genus, Cytherella Jones, is represented by 3 atypical species.

The stratigraphical value of the ostracods is shown and the lateral equivalence of the upper part of the Toolonga Calcilutite with the Korojon Calcarenite confirmed. A new hinge type, characteristic of the Cytheruridae, is identified and named peratodont. 4 variations (holoperatodont, hemiperatodont, paraperatodont, and artioperatodont) are recognized.

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