Position in a system
| system | Vitae - living organisms |
| domain | Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells |
| superregnum | Unikonta |
| system | Opisthokonta Cavalier-Smith, 1987 |
| kingdom | Fungi Whittaker - fungi |
| divisio | Zygomycota - bread molds |
| class | Zygomycetes |
| order | Mucorales |
| Mucorales incertae sedis | |
| genus | Rhizopus Ehrenb. |
| species | Rhizopus sexualis (G. Sm.) Callen |