Visit us at

Diatoms of the United States is now known as Diatoms of North America.
This site has been redesigned and updated, and will be closing soon.


Use and copyright

All use of images or text on the Diatoms of the United States website is subject to U.S. copyright law. Users may download and use images or text from the website unless the images or text has limitations for its use.

Limitation for use applies to the Original Descriptions and Original Images that appear on the species pages, which have been reproduced with permission from the copyright holder.

Use of any images, text, or data accessed from the website should be credited as having been provided by the Diatoms of the United States website and acknowledge the contributor.

Use and importance of citation

Users of images or text from the website are requested to cite and attribute such use in their work.

Citing the website allows us to track the use and impact of our data, to more effectively report data distribution activity to funding agencies, and to assist other users who may contact us with questions about data that are referenced in publications.

Please note that we prefer that users include a citation in the references section of the publication. While we appreciate acknowledgement within the text of the publication, we are better able to track the use of our data if citations are included as references.

Further, we request that users contact us with the Digital Object Identifier (DOI) of any published work that cites our online resource. This helps us identify how our data are being used by the user community and helps us to build our citation index.

Citing this website

Any publications that use data obtained from this web site should cite the original publications and the specific or general citation. The specific citation for each genus and species page is provided at the bottom of each page. The general citation for the web site is:
Spaulding, S.A., Lubinski, D.J. and Potapova, M. (2010). Diatoms of the United States. Accessed on 22 May, 2018.