Position in a system
| system | Vitae - living organisms |
| domain | Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells |
| superregnum | Unikonta |
| system | Opisthokonta Cavalier-Smith, 1987 |
| phylum | Choanozoa Cavalier-Smith, 1981 emend. 1983 |
| class | Cristidiscoidea |
| order | Ministeriida Cavalier-Smith, 1997 |
| genus | Ministeria Patterson, Nygaard, Steinberg & Turley, 1993 |