Tetragonidiaceae

Tetragonidiaceae
Scientific classification
Domain:	Eukaryota
Division:	Cryptophyta
Class:	Cryptophyceae
Order:	Tetragonidiales; Kristiansen, 1992
Family:	Tetragonidiaceae; Bourrelly ex Silva, 1980
Type genus
	Tetragonidium; Pascher, 1914
Genera
	Bjornbergiella; Tetragonidium;

Tetragonidiaceae is a family of cryptomonads which includes two genera. Members of Tetragonidiaceae are distinguished from other cryptomonads by reproduction occurring in a non-motile vegetative phase, as well as the formation of multicellular filaments unlike any other cryptomonad family.^[1]^[2]^[3]

References

↑ Novarino and Lucas (1993), "Some proposals for a new classification system of the Cryptophyceae", Botanical Journal of the Linnean Society, 111 (1): 3–21, doi:10.1006/bojl.1993.1002
↑ Bicudo (1965), "Bjornbergiella, a New Genus of Cryptophyceae from Hawaiian Soil", Phycologia, 5 (4): 217–221, doi:10.2216/i0031-8884-5-4-217.1
↑ Guiry, M.D. & Guiry, G.M. 2025. AlgaeBase. World-wide electronic publication, University of Galway. https://www.algaebase.org; searched on 15 May 2026.

[1] Novarino and Lucas (1993), "Some proposals for a new classification system of the Cryptophyceae", Botanical Journal of the Linnean Society, 111 (1): 3–21, doi:10.1006/bojl.1993.1002

[2] Bicudo (1965), "Bjornbergiella, a New Genus of Cryptophyceae from Hawaiian Soil", Phycologia, 5 (4): 217–221, doi:10.2216/i0031-8884-5-4-217.1

[3] Guiry, M.D. & Guiry, G.M. 2025. AlgaeBase. World-wide electronic publication, University of Galway. https://www.algaebase.org; searched on 15 May 2026.

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