liik
Normalograptus trifilis (Manck, 1923)
Sünonüümika
1923     Climacograptus trifilis spec. nov. — Manck , lk. 228, joon. 32
1952     Climacograptus trifilis Manck — Münch , lk. 51
1965     Climacograptus trifilis Manck — Stein , lk. 165-167, joon. 17a-d, Pl. 14d,e
1971     Climacograptus trifilis trifilis Manck — Schauer , lk. 26, joon. 3:1-3; 5:4-6; text fig. 8
1975     Climacograptus trifilis trifilis Manck, 1975 — Bjerreskov , lk. 23, joon. 9B
1988     Hedrograptus trifilis (Manck, 1923) — Obut et al. , lk. 25
2008     Normalograptus trifilis (Manck, 1923) — Šorch & Feist , lk. 945, joon. 5.13; 9.14
2014     Normalograptus trifilis — Bergström et al. , lk. 357
Valik taksonit käsitlevast teaduskirjandusest
Bergström, S. M., Eriksson, M. E., Young, S. A., Ahlberg, P., Schmitz, B. 2014. Hirnantian (latest Ordovician) d13C chemostratigraphy in southern Sweden and globally: a refined integration with the graptolite and conodont zone successions.  GFF   136,   2,   355-386. DOI:10.1080/11035897.2013.851734
Klassifikatsioon
| organismirühm | Biota | 
| riik | Animalia | 
| hõimkond | Hemichordata | 
| klass | Pterobranchia | 
| alamklass | Graptolithina | 
| selts | Graptoloidea | 
| alamselts | Axonophora | 
| infraselts | Neograptina | 
| sugukond | Normalograptidae | 
| perekond | Normalograptus | 
| liik | ajjeri | 
| angustus | |
| antiquus | |
| balticus | |
| brevis | |
| kuckersianus | |
| medius | |
| nikolayevi | |
| normalis | |
| premedius | |
| rectangularis | |
| rotundatus | |
| scalaris | |
| transgrediens | |
| trifilis | 
Levik kirjandusandmetel
- Bergström et al., 2014 Röstanga 1 puurauk Rhuddani lade