Genus
Apertocrinus (col.) Stukalina, 1968
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Pelmatozoa |
| Class | Crinoidea |
| Organism group | Stemmed echinoderms outgroup (informal) |
| Order | Angulata (col.) |
| Family | Apertocrinidae (col.) |
| Genus | Apertocrinus (col.) |
| Species | Apertocrinus (col) apertus |
| Genus | Sidericrinus (col.) |
| Squameocrinus (col.) |