Additional
Information: The Diatoms. Diatoms are unicellular organisms that have a cell wall made of silicon dioxide and composed of two valves, which fit together with the help of a set of girdle bands.
Bacillariophyta Sites:
Great Lakes Diatoms Great Lakes Diatoms: Collection of images, classified by morphology and by genus. (Bacillariophyta) http://www.umich.edu/~phytolab/GreatLakesDiatomHomePage/top.html
California Academy of Sciences Diatom Collection California Academy of Sciences Diatom Collection: An extensive resource on diatom taxonomy, primarily focused on recent freshwater diatoms of the United States. (Bacillariophyta) http://www.calacademy.org/research/diatoms/
Cohn Lab Center For Diatom Research Cohn Lab Center For Diatom Research: Dedicated to expanding research and general knowledge of diatoms, includes basic introductions about diatoms, and information about the laboratory and the research undertaken. (Bacillariophyta) http://condor.depaul.edu/~diatom
Freshwater Diatoms Freshwater Diatoms: Microscope images of many genera, mostly collected in central Texas. (Bacillariophyta) http://www.vvm.com/~jevans/sfaquaticalgae/folderdiatoms/fdiatbc.html
Introduction to Bacillariophyta (the Diatoms) Introduction to Bacillariophyta (the Diatoms): Information about the fossil record, life history and ecology, systematics, and morphology. (Bacillariophyta) http://www.ucmp.berkeley.edu/chromista/bacillariophyta.html