Mission: To enable industrial and academic palaeontologists working with calcareous nannofossils to share and develop taxonomic concepts. Supporting organizations: International Nannoplankton Association, Gulf Coast Section of SEPM, The Micropalaeontological Society



Michaelsarsia, an extant coccolithophore, the expansion project will include coverage of modern nannoplankton   

Welcome to Nannotax

Notice - this version of the site is no longer being maintained and we recommend that instead you use the new version.

Objective: To provide an authoritative guide to nannofossil taxonomy and biostratigraphy and extant coccolithophore biodiversity, with extensive options for user commenting and contributions. 

What's on so far: Extant: Taxonomic framework only (based on Young et al., 2003) which will be expanded to full coverage in 2012-13. Neogene: Rather comprehensive coverage of nannofossil taxonomy, including images of most taxa, a searchable bibliography of Neogene nannofossil literature, short descriptions of species and higher taxa. This is primarily based on Young (1998)Paleogene: Comprehensive listing of Paleogene taxa, produced by Paul Bown, with short notes on most taxa and illustrations of most taxa. Mesozoic: Comprehensive listing of Mesozoic taxa, produced by Jackie Lees and Paul Bown, with illustrations of most taxa and short descritions of many taxa. Calcareous nannofossil biostratigraphy (ed. Bown, 1998) - all the images from this key reference book are now included on the site and as somewhat better copies than the published version. Have a look at these galleries, JurassicLower Cretaceous.

What you can do:

  • Use the menus, galleriesbibliography and search box (top left & top right) to explore the current content
  • Use the forum to discuss this site or related topics
  • Create a user/contributor account and help develop the site
  • Read more - for a better idea of how the site works please read the user guide. 

Citing Nannotax - see the user guide



Following feedback, I have made a couple of changes to site navigation which should make things easier. First, I have moved the search menu to the tope of the sidebar. Second, I have put a new "Select interval" menu in the sidebar that allows you to choose whether to see the taxonomic menu for the Mesozoic, Palaeogene, Neogene or Extant. 

INA14, 15th-21st September 2013, Reston, Virginia

The next International Nannoplankton Association conference will be organised by Jean Self-Trail of the United States Geological Survey and will be held at the USGS headquarters in Reston Virginia (greater Washington DC metropolitan area), USA, on September 15th-21st, 2013.  As well as being a fine location, scientifically, the Washington DC area has much to offer, from great wineries, to beautiful national parks, to world class museums and restaurants, and this will be a great opportunity to sample them.

Expansion project

We are pleased to announce that we have been awarded a substantial grant from the Knowledge Exchange programme of the UK Natural Environment Research Council to develop the Nannotax website. This project will run for two years, from November 2011, and will enable us to improve, develop and expand the website, in collaboration with a network of project partners. More detail on this project will be given in a separate page.  


Spring, 2011. With support from the Gulf Coast Section of the Society of Economic Paleontologists and Mineralogists (GCSSEPM), we are working with the Scratchpads team in the NHM to develop web dictionaries of chronostratigraphic and biostratigraphic terms. These will enable intelligent use of geological time in the site. In parallel, we are expanding content of the site. In particular, the Mesozoic section has now been developed to a very useful level.

Jeremy Young, Paul Bown, Jackie Lees, Earth Sciences Dept., University College London


Nannotax is a publication of the International Nannoplankton Association and is supported by:

 EDIT  Logo
 SEPMlogo    TMSlogo_square  ucl logo NERC logo  NHM logo
European Distributed Institute of Taxonomy
The Gulf Coast Section of the Society of Economic Paleontologists and Mineralogists The Micropalaeontological Scoiety University College London The Natural Environment Research Council The Natural History Museum
Scratchpads developed and conceived by: Vince Smith, Simon Rycroft, Dave Roberts, Ben Scott...