Species
Baltograptus geometricus (Törnquist, 1901)
Synonyymit
1994 Baltograptus geometricus (Törnquist, 1901) — Maletz , pp. 36
2004 Baltograptus geometricus — Bergström et al. , pp. 268
Aiheeseen liittyvät julkaisut
Bergström, S. M., Löfgren, A., Maletz, J. 2004. The GSSP of the Second (Upper) Stage of the Lower Ordovician Series: Diabasbrottet at Hunneberg, Province of Västergötland, Southwestern Sweden. Episodes 27, 4, 265-272.
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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 |
Levinneisyys ja viitteet
- Bergström et al., 2004a Diabasbrottet quarry, Sweden Lower Ordovician