Pirsonia
| Pirsonia | |
|---|---|
| Scientific classification | |
| Domain: | Eukaryota | 
| Clade: | Diaphoretickes | 
| Clade: | Sar | 
| Clade: | Stramenopiles | 
| Class: | Pirsonea Cavalier-Smith 2017 | 
| Order: | Pirsoniida Cavalier-Smith & Chao 2006 | 
| Family: | Pirsoniaceae Cavalier-Smith 1998 | 
| Genus: | Pirsonia Schnepf, Debres & Elbrachter 1990 | 
| Species | |
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Pirsonia is a non photosynthetic genus of heterokonts. It comprises the entirety of the family Pirsoniaceae, order Pirsoniida and class Pirsonea in the subphylum Bigyromonada, phylum Gyrista.