Abstract

Four species of the genus Neocyprideis described in this paper are an addition to the ostracod fauna from the early Tertiary of Pakistan. N. sp. A occurs in the Upper Palaeocene of the Sor Range, and three new species are found in the Eocene of the Sulaiman Range. The new species are Neocyprideis simplex and N. regularis from the upper Lower Eocene, and N. formosa from the uppermost Eocene. The first two species, the associated ostracod fauna and the lithology suggest a shallow marine shelf environment with evaporitic conditions, while N. formosa lived in an open marine shelf environment. The short vertical ranges of these three new species makes them useful stratigraphic markers in this area.

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