Species
Erratencrinurus (Erratencrinurus) postseebachi Krueger, 1991
Synonymy list
1991     Erratencrinurus postseebachi — Krueger , pp. 126, fig. 3:8-12
2004     Erratencrinurus (Erratencrinurus) postseebachi Krueger, 1991 — Krueger , pp. 98, fig. 11:1-19
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Arthropoda | 
| Subphylum | Trilobita | 
| Order | Phacopida | 
| Suborder | Cheirurina | 
| Family | Encrinuridae | 
| Subfamily | Encrinurinae | 
| Genus | Erratencrinurus | 
| Subgenus | (Erratencrinurus) | 
| Species | brutoni | 
| capricornu | |
| ceras | |
| inopinatus | |
| jaegeri | |
| kauschi | |
| kummerowi | |
| melzensis | |
| nebeni | |
| postseebachi | |
| praecapricornu | |
| rhebergeni | |
| seebachi | |
| sellinensis | |
| Subspecies | heinrichi |