nannofossil

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nan·no·fos·sil

also nan·o·fos·sil  (năn′ə-fŏs′əl)
n.
A very small fossil organism, especially one of the nannoplankton.
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Calcareous nannofossils biostratigraphy of oil shales from Jordan.
(2008) and the study of the distribution of nannofossils performed by Fra-guas (2010) show that neither the benthic nor the nektonic organisms were significantly affected in their vertical distribution by periods of deficiency in oxygen.
Quantitative biochronology of Pliocene and Early Pleistocene calcareous nannofossils from the Atlantic, Indian and Pacific oceans.
Pliocene paleoclimatology at ODP Site 1115, Soloman Sea (southwestern Pacific Ocean), based on calcareous nannofossils; in P.
Based on published accounts of the presence of nannofossils and plankronic foraminifera, and additional field work, we conclude that the age of the study area is late Miocene to late Pliocene.
The sediments were also examined for palynomorphs, planktonic foraminifera, and calcareous nannofossils, even though few were expected to be found.
After swirling sediment and water on a glass slide, drying the sample on a hot plate, and covering it with optical cement or Canada balsam, I'd examine it under a microscope to estimate its sand, silt, and clay content, and then the composition percentage of such elements as quartz, feldspar, mica, glauconite, and various microfossils such as foraminifera, nannofossils, diatoms, and radiolaria.
(1986): Revision of the stratigraphy of the Longobucco Group (Liassic, southern Italy); based on new data from nannofossils and ammonites.