Tetraselmis
genus of algae

Tetraselmis is a genus of phytoplankton. Tetraselmis is a green algal genus within the order Chlorodendrales, and they are characterized by their green chloroplast, their four-flagellate cell bodies, the presence of a pyrenoid within the chloroplast, and a scale-produced thecal-wall. Species within this genus are found in both marine and freshwater ecosystems across the globe; their habitat range is mainly limited by water depth due to their photosynthetic nature. Thus, they live in diverse water environments if enough nutrients and light are available for net photosynthetic activity. Tetraselmis species have proven to be useful for both research and industry. Tetraselmis species have been studied for understanding plankton growth rates, and recently a colonial species is being used to gain an understanding of multicellularity evolution. Additionally, many species are currently being examined for their use as biofuels due to their high lipid content.
History
The genus name was first presented to the scientific community in Germany in 1878 by F. von Stein. The genus Tetraselmis has undergone several taxonomic changes, largely due to more advanced research techniques (such as electron microscopy) that have aided scientists in their classification.
Location and ecology
Tetraselmis species are found in both marine and freshwater ecosystems, and they occupy niches as primary producers in benthic and planktonic food webs.
“Tetraselmis” enters the record as genus of algae. Crown Archives preserves that source wording while asking what Tetraselmis, genus and algae can confirm, complicate or overturn.
Why this record matters
“Tetraselmis” is worth following because a concise public description often conceals a longer documentary argument. Here, Tetraselmis, genus and algae provides the most credible route into that argument.
Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Dec 23, 2025. The linked authority identifier is Q7706731. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1878.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.
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Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.
Three-step research path
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Questions for further research
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This entry incorporates text from “Tetraselmis” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.