Siddiqui, Q.A. (1971a) Early Tertiary Ostracoda of the family Trachyleberididae from West Pakistan. Bulletin of the British Museum (Natural History).Geology Suppl. 9, 1–98.
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Siddiqui, Q. A.
1971
Early Tertiary Ostracoda of the family Trachyleberididae from West Pakistan
Bulletin of the British Museum (Natural History).Geology Suppl
Ostracoda from the Palaeocene of the Sor Range and from the Palaeocene and Eocene of the Rakhi Nala, Zao River and Shpalai Khwara sections, Sulaiman Range, West Pakistan, have been examined. The family TRACHYLEBERIDIDAE has been studied in detail. It is represented by fourteen genera, four subgenera and fifty-nine species. Four new genera {Alocopocy there, Gyrocy there, Phalcocythere and Stigmatocy there) and two new subgenera (Paracosta and Scelidocythereis) are proposed. Out of the fifty-nine species described, fifty-four are new. Two species belonging to the genus Phalcocythere one from the Paris Basin and the other stratigraphic units. The biostratigraphic units IV and V of the Rakhi Nala are represented in the Zao River section and have almost identical ostracod faunas. The biostratigraphic unit IV of the Rakhi Nala is also represented in the Shpalai Khwara section. The Equations of
Correlation between the Rakhi Nala and Zao River sections for biostratigraphic unit V (i. e. Middle-Upper Eocene) have been calculated by means of ranges of ostracod species common to the two sections. The standard errors of estimate for the Equations of Correlation have also been calculated. The boundaries between the Palaeocene-Lower Eocene, Lower-Middle Eocene and Middle-Upper Eocene in the Sulaiman Range are discussed.