Species
Protaxocrinus distensis (Angelin, 1878)
Synonyymit
1983 Protaxocrinus distensis — Franzén , pp. 11
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Pelmatozoa |
| Class | Crinoidea |
| Superclass | Pentacrinoidea |
| Infraclass | Inadunata |
| Parvclass | Cladida |
| Superorder | Flexibilia |
| Order | Taxocrinida |
| Superfamily | Taxocrinoidea |
| Family | Taxocrinidae |
| Genus | Protaxocrinus |
| Species | distensis |
| estoniensis | |
| interbrachiatus | |
| ovalis | |
| salteri |