Back قصارانية Arabic Breviatea Spanish Breviatea Hungarian Breviatea ID ブレビアテア綱 Japanese 브레비아타류 Korean Breviatea Portuguese
| Breviatea | |
|---|---|
| |
| Breviata anathema | |
Scientific classification 
| |
| Domain: | Eukaryota |
| Clade: | Amorphea |
| Clade: | Obazoa |
| Class: | Breviatea Cavalier-Smith, 2004[2] |
| Order: | Breviatida Cavalier-Smith, 2004[2] |
| Family: | Breviatidae Cavalier-Smith, 2013[1] |
| Genera | |
| Diversity | |
| 4 species | |
Breviatea, commonly known as breviate amoebae,[3] are a group of free-living, amitochondriate protists with uncertain phylogenetic position.[4] They are biflagellate, and can live in anaerobic (oxygen-free) environments.[4][3][5] They are currently placed in the Obazoa clade.[6] They likely do not possess vinculin proteins.[6] Their metabolism relies on fermentative production of ATP as an adaptation to their low-oxygen environment.[4]
The lineage emerged roughly one billion years ago, at a time when the oxygen content of the Earth's oceans was low, and they thus developed anaerobic lifestyles. Together with Apusomonads, they are the closest relatives of the Opisthokonts, a group that includes animals and fungi.[3][7]
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