Position in a system
| system | Vitae - living organisms |
| domain | Eukaryota Whittaker & Margulis, 1978 - lifeforms with nucletic cells |
| superregnum | Bikonta - bikonts |
| Cabozoa | |
| kingdom | Excavata Cavalier-Smith, 2002 |
| superphylum | Eozoa Cavalier-Smith & Yao, 1995 |
| phylum | Metamonada (Grassé, 1952) Cavalier-Smith, 1981 |
| subphylum | Trichozoa (Cavalier-Smith 1996) Cavalier-Smith,2003 |
| superclassis | Parabasalia (Honigberg, 1973) Cavalier-Smith, 2003 |
| class | Trichomonadea (H. Kirby, 1947) L. Margulis, 1974 |
| order | Lophomonadida Light, 1927 |
| family | Deltotrichonymphidae |