| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Acanthocorbis S. Hara & E. Takahashi 1984 | 0 | 0 | 2 |
| ACANTHOECIDAE | 6 | 0 | 0 |
| Actinomonas Kent 1880 | 1 | 0 | 0 |
| Actinomonas mirabilis Kent 1880 | 0 | 0 | 9 |
| Allantion H. Sandon 1924 | 1 | 0 | 0 |
| Allantion tachyploon Sandon | 0 | 0 | 4 |
| Allas | 0 | 0 | 0 |
| Amastigomonas | 2 | 0 | 0 |
| Amastigomonas debruynei | 0 | 0 | 3 |
| Amastigomonas mutabilis | 0 | 0 | 2 |
| AMOEBOZOA | 3 | 0 | 0 |
| Ancyromonas W. S. Kent 1881 | 1 | 0 | 0 |
| Ancyromonas sigmoides | 0 | 0 | 3 |
| Anisonema Dujardin 1841 | 1 | 0 | 4 |
| Anisonema prosgeobium Skuja 1939 | 0 | 0 | 2 |
