| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Abrocomidae | 0 | 0 | 0 |
| Acanaloniidae | 0 | 0 | 0 |
| Acanthaceae | 0 | 0 | 0 |
| Acanthasteridae | 0 | 0 | 0 |
| Acanthisittidae | 0 | 0 | 0 |
| Acanthocephala | 0 | 0 | 0 |
| Acanthochitonidae Pilsbry 1893 | 0 | 0 | 0 |
| Acanthodii | 0 | 0 | 0 |
| Acanthosomatidae | 0 | 0 | 0 |
| Acanthuridae | 0 | 0 | 0 |
| Acari (acariens) | 0 | 0 | 0 |
| Acaridae | 0 | 0 | 0 |
| Acartophthalmidae | 0 | 0 | 0 |
| Accipitridae | 0 | 0 | 0 |
| Accipitriformes | 0 | 0 | 0 |
