| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Lissamphibia (amphibians) | 2 | 6 | 0 |
| Achillea (yarrow) | 1 | 0 | 0 |
| Achillea millefolium L. (yarrow, milfoil) | 0 | 2 | 0 |
| Achiridae (American soles) | 0 | 2 | 0 |
| Rhombosoleidae | 1 | 2 | 0 |
| Achlamydosporeae | 2 | 0 | 0 |
| Achondrostoma | 1 | 0 | 0 |
| Achondrostoma arcasii (Steindachner 1866) | 0 | 2 | 0 |
| Acidobacteria | 0 | 2 | 0 |
| Acinetobacter | 1 | 0 | 0 |
| Acinetobacter baumannii | 0 | 2 | 0 |
| Acinonyx Brookes 1828 | 1 | 0 | 0 |
| Acinonyx jubatus (Schreber 1775) (cheetah) | 0 | 2 | 0 |
| Acipenser | 1 | 2 | 0 |
| Acipenser sturio Linnaeus 1758 (Atlantic Sturgeon) | 0 | 2 | 0 |
