Position in a system
| system | Vitae - living organisms |
| Vitae incertae sedis | |
| class | Acritarcha Evitt 1963 † |
| genus | Skiagia Downie 1982 † |
| species | Skiagia orbiculare (Volkova, 1968) Downie, 1982 † |
| system | Vitae - living organisms |
| Vitae incertae sedis | |
| class | Acritarcha Evitt 1963 † |
| genus | Skiagia Downie 1982 † |
| species | Skiagia orbiculare (Volkova, 1968) Downie, 1982 † |