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 | Animalia Linnaeus, 1758 - animals |
| subregnum | Parazoa |
| phylum | Porifera Grant in Todd, 1836 - sponges |
| class | Demospongiae Sollas, 1885 |
| subclass | Stromatoporoidea Nicholson & Murie, 1878 † |
| order | Actinostromatida Bogoyavlenskaya, 1969 † |
| family | Actinostromatidae Nicholson, 1886 † |
| genus | Actinostroma Nicholson, 1886 † |