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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.

Marge Penton

Taxon Contributor
Diatom Enthusiast, Rocky Mountain Biological Lab

Pedraza Garzon, Edna


Pickett, Frank

Have you thanked a diatom today? - Anon


I received a Master’s degree in Phycology and have worked as a Research Assistant and H.S. Science Teacher. Now I would like to devote time to exploring, understanding and preserving our freshwater ecosystems in the western United States.

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Rocky Mountain Biological Lab
Friends of the Bill Williams River and Havasu National Wildlife Refuges