| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Cocconeis pediculus | 0 | 0 | 2 |
| Cocconeis placentula var. placentula Ehrenberg 1838 | 0 | 0 | 2 |
| Cocconeis scutellum var. scutellum Ehrenberg 1838 | 0 | 0 | 2 |
| Cochlodinium Schütt 1896 | 0 | 0 | 2 |
| Cochlodinium helicoides | 0 | 0 | 2 |
| Cochlodinium pupa | 0 | 0 | 2 |
| Coelastrum astroideum | 0 | 0 | 2 |
| Coelastrum microporum | 0 | 0 | 2 |
| Coelastrum pseudomicroporum | 0 | 0 | 2 |
| Hariotina reticulata | 0 | 0 | 2 |
| Coelastrum sphaericum | 0 | 0 | 2 |
| Coelomoron Buell 1938 | 0 | 0 | 2 |
| Coelomoron pusillum | 0 | 0 | 2 |
| Coelosphaerium Nägeli 1849 | 0 | 0 | 2 |
| Coelosphaerium dubium | 0 | 0 | 2 |
