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en.wikipedia.org/wiki/Diatom

Diatoms also grow attached to benthic substrates, floating debris, and on macrophytes. They comprise an integral component of the periphyton community. Another classification divides plankton into eight types based on size: in this scheme, diatoms are classed as microalgae. Several systems for classifying the individual diatom species exist.

www.microscopemaster.com/diatoms.html

Diatoms Under the Microscope Classification and Characteristics What are Diatoms? Diatoms are photosynthetic organisms referred to as algae with a length/diameter of between 2 and 500 microns. They have a transparent cell wall (frustule) made of silicon dioxide, which is itself hydrated with a little amount of water.

diatoms.org/species

Diatoms of North America. The source for diatom identification and ecology

www.britannica.com/science/diatom

Diatom, (class Bacillariophyceae), any member of the algal class Bacillariophyceae (division Chromophyta), with about 16,000 species found in sediments or attached to solid substances in all the waters of Earth. Diatoms are among the most important and prolific microscopic sea organisms and serve directly or indirectly as food for many animals.

www.newworldencyclopedia.org/entry/Diatom

The classification of heterokonts is still unsettled, and they may be treated as a division (or phylum), kingdom, or something in-between. Accordingly, groups like the diatoms may be ranked anywhere from class (usually called Bacillariophyceae) to division (usually called Bacillariophyta), with corresponding changes in the ranks of their subgroups.

www.creationwiki.org/Diatom

According to the recent classification, diatoms are divided into three classes: centric diatoms (Coscinodiscophyceae), pennate diatoms without a raphe (Fragilariophyceae), and pennate diatoms with a raphe (Bacillariophyceae). A raphe is a ridge where two halves of the diatoms join. The classification of diatom is likely to be revised in the future.

bioweb.uwlax.edu/bio203/2010/ramsby_jord/classification.htm

The way the classification are placed here are as they currently understood and placed into their various phyla, classes, orders, and families. Diatoms are Eukaryotic and belong to the Kingdom protista. They further belong to the super group Chromalveolata and are grouped into the Strameopiles as the lineage Diatoms.

diatombase.org

DiatomBase is an attempt to integrate the Catalogue of Diatom Names, and include names that have appeared since the Catalogue of Diatom Names was last updated (2011), as well as to include information about types, ecology, images, original descriptions and distributions.

www.biologydiscussion.com/algae/diatoms-characteristics-occurrence-and-reproduction/46940

ADVERTISEMENTS: In this article we will discuss about:- 1. Description of Diatoms 2. Characteristics of Diatoms 3. Classification 4. Occurrence 5. Plant Body 6. Cell Structure 7. Reproduction 8. Economic Importance. Description of Diatoms: It is a large group of algae consisting of 200 genera and over 10,000 species, out of which 92 genera and […]

diatoms.org/what-are-diatoms

Diatoms are particular about the quality of water in which they live. For example, species have distinct ranges of pH and salinity where they will grow. Diatoms also have ranges and tolerances for other environmental variables, including nutrient concentration, suspended sediment, flow regime, elevation, and for different types of human ...