| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Watznaueria P. Reinhardt 1964 | 0 | 0 | 1 |
| Wigwamma I. Manton, J. Sutherland & K. Oates 1977 | 0 | 0 | 1 |
| Willaertia | 0 | 0 | 1 |
| Wiseorhabdus D. Bukry 1981 | 0 | 0 | 1 |
| Zeugrhabdotus P. Reinhardt 1965 | 0 | 0 | 1 |
| Zygnemophyceae | 0 | 0 | 1 |
| Zygodiscus Bramlette & F. Sullivan 1961 | 0 | 0 | 1 |
| Zygolithites M. Black 1972 | 0 | 0 | 1 |
| Zygolithus Kamptner ex Deflandre 1952 | 0 | 0 | 1 |
| Zygosphaera Kamptner 1937 | 0 | 0 | 1 |
