| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Acinetosporaceae | 0 | 0 | 12 |
| Acipenseridae (Esturgeon) | 0 | 0 | 12 |
| Aclerdidae | 0 | 0 | 12 |
| Aclididae | 0 | 0 | 12 |
| Aclistocharaceae | 0 | 0 | 12 |
| Acmaeidae Forbes 1850 | 0 | 0 | 12 |
| Acochlidiidae Küthe 1935 | 0 | 0 | 12 |
| Acoetidae | 0 | 0 | 12 |
| Acoleidae | 0 | 0 | 12 |
| Acontiophoridae Carlgren 1938 | 0 | 0 | 12 |
| Acoraceae | 0 | 0 | 12 |
| Acoraniidae López-Fé 2006 | 0 | 0 | 12 |
| Acramoebidae | 0 | 0 | 12 |
| Acrididae | 0 | 0 | 12 |
| Acrobatidae Aplin 1987 | 0 | 0 | 12 |
