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Variant of nannofossil.
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References in periodicals archive ?
Although these zonation schemes are mainly based on faunal ranges of the western Tethys, they still provide an excellent base for the correlation of larger foraminifera across the Tethys, as these standard zones are in turn correlated with the planktonic (P1-P18) and nanofossil zones (NP-NP21; Martini, 1971; Berggren et al., 1995).
de Lanois, Separation and [.sup.14]C dating of pure pollen from lake sediments: nanofossil AMS dating," Radiocarbon 34, 557-560 (1992).
Ashraf and Bhatti [19] has repoted the nanofossils from the Patala Formation and Nammal Foramtion of Khairabad area of the Salt Range.