Species
Tetragraptus norvegicus (Monsen, 1937)
Synonymy list
1937 Isograptus caduceus (Salter pars) var. norvegicus n. var. — Monsen , pp. 154, fig. 5:5,12,14,18
1953 Isograptus norvegicus Monsen — Spjeldnaes , pp. 174, fig. 1:2,4,6; text fig. 1B,C,F
1992 Tetragraptus ( Tetragraptus ) isograptoides Geh — Maletz , pp. 99, fig. 49
2011 Tetragraptus (?) norvegicus (Monsen, 1937) — Maletz , pp. 271, fig. 1a?, 5a-i
Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Dichograptina |
| Family | Tetragraptidae |
| Genus | Tetragraptus |
| Species | amii |
| askerensis | |
| astericus | |
| bigsbyi | |
| cor | |
| crucifer | |
| gracilis | |
| headi | |
| krapperupensis | |
| longus | |
| mobergi | |
| norvegicus | |
| phyllograptoides | |
| pseudobigsbyi | |
| quadribrachiatus | |
| reclinatus | |
| serra | |
| spinosus | |
| taraxacum | |
| toernquisti |