Definition of nannofossil in English:


Line breaks: nanno|fos¦sil
Pronunciation: /ˈnanəʊˌfɒs(ə)l
, -sɪl/
(also nanofossil)


  • The fossil of a minute planktonic organism, especially a calcareous unicellular alga.
    More example sentences
    • This paper presents high-resolution data from calcareous nannofossils, planktic Foraminifera, palynomorphs and stable isotopes for the Late Albian OAE Id.
    • In the seas, the calcareous nannofossils were still in evidence but in shallow waters the benthonic nummulite and other larger foraminifera became very abundant.
    • The same samples as used for geochemistry were investigated for their content of calcareous nannofossils.


1960s: from nannoplankton (variant of nanoplankton) + fossil.

More definitions of nannofossil

Definition of nannofossil in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
(in science fiction) navigation in outer space