Species
Erratencrinurus (Erratencrinurus) ceras Krueger, 1971
Synonyymit
1971 Erratencrinurus ceras — Krueger , pp. 1146, fig. 5:1a-c
2004 Erra tencrinuncs (Erra tencrin uncs) ceras Krueger, 1971 — Krueger , pp. 113, fig. Taf. 12:17-27; Abb. 8
Luokittelu
| 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 |