liik
Tetragraptus norvegicus (Monsen, 1937)
Sünonüümika
1937 Isograptus caduceus (Salter pars) var. norvegicus n. var. — Monsen , lk. 154, joon. 5:5,12,14,18
1953 Isograptus norvegicus Monsen — Spjeldnaes , lk. 174, joon. 1:2,4,6; text fig. 1B,C,F
1992 Tetragraptus ( Tetragraptus ) isograptoides Geh — Maletz , lk. 99, joon. 49
2011 Tetragraptus (?) norvegicus (Monsen, 1937) — Maletz , lk. 271, joon. 1a?, 5a-i
Klassifikatsioon
| organismirühm | Biota |
| riik | Animalia |
| hõimkond | Hemichordata |
| klass | Pterobranchia |
| alamklass | Graptolithina |
| selts | Graptoloidea |
| alamselts | Dichograptina |
| sugukond | Tetragraptidae |
| perekond | Tetragraptus |
| liik | amii |
| askerensis | |
| astericus | |
| bigsbyi | |
| cor | |
| crucifer | |
| gracilis | |
| headi | |
| krapperupensis | |
| longus | |
| mobergi | |
| norvegicus | |
| phyllograptoides | |
| pseudobigsbyi | |
| quadribrachiatus | |
| reclinatus | |
| serra | |
| spinosus | |
| taraxacum | |
| toernquisti |