Species
Baltograptus liber (Monsen, 1937)
Synonyymit
1937 Didymograptus liber n. sp. — monsen , pp. 122, fig. 2:6,7
2014 Norveigograptus liber — Li et al. , pp. 173
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Graptoloidea |
| Suborder | Dichograptina |
| Family | Didymograptidae |
| Genus | Baltograptus |
| Species | extremus |
| floianus | |
| geometricus | |
| jacksoni | |
| kurcki | |
| liber | |
| minutus | |
| novus | |
| vacillans |