liik
Streptograptus speciosus (Tullberg, 1883)
Sünonüümika
1883     Monograptus speciosus  — Tullberg , lk. 21, joon. 2:16-19
1943     Monograptus (Streptograptus) speciosus (Tullberg, 1883) — Bouček & Přibyl , lk. 8, joon. 2:7-9
1975     Monograptus speciosus Tullberg, 1883 — Bjerreskov , lk. 76, joon. 12A
1996     "Monograptus speciosus" Tullberg, 1883 — Loydell & Cave , joon. 10c
1998     "Monograptus" speciosus Tullberg — Loydell et al. , joon. 5i
2003     "Monograptus" speciosus Tullberg — Loydell et al. , lk. 213, joon. 8h
2006     Streptograptus speciosus (Tullberg, 1883) — Loydell & Nestor , lk. 590, joon. 4-5
Valik taksonit käsitlevast teaduskirjandusest
Loydell, D. K., Nestor, V. 2006. Isolated graptolites from the Telychian (Upper Llandovery, Silurian) of Latvia and Estonia.  Palaeontology   49,   3,   585-619. DOI:10.1111/j.1475-4983.2006.00550.x
Loydell, D. K., Männik, P., Nestor, V. 2003. Integrated biostratigraphy of the lower Silurian of the Aizpute-41 core, Latvia.  Geological Magazine   140,   2,   205-229. DOI:10.1017/S0016756802007264
Loydell, D. K., Kaljo, D., Männik, P. 1998. Integrated biostratigraphy of the lower Silurian of the Ohesaare core, Saaremaa, Estonia.  Geological Magazine   135,   6,   769-783. DOI:10.1017/S0016756898001423
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Klassifikatsioon
| organismirühm | Biota | 
| riik | Animalia | 
| hõimkond | Hemichordata | 
| klass | Pterobranchia | 
| alamklass | Graptolithina | 
| selts | Graptoloidea | 
| alamselts | Axonophora | 
| sugukond | Monograptidae | 
| perekond | Streptograptus | 
| liik | anguinus | 
| ansulosus | |
| antennularius | |
| barrandei | |
| crispus | |
| dalecarlicus | |
| exiguus | |
| filiformis | |
| johnsonae | |
| kaljoi | |
| loydelli | |
| nodifer | |
| plumosus | |
| pseudobecki | |
| retroflexus | |
| sartorius | |
| speciosus | |
| storchi | |
| tenuis | |
| whitei | |
| wimani | 
Levik kirjandusandmetel
- Loydell et al., 2003 Aizpute 41 puurauk 933.55 - 935.65 Telychi lade
 - Loydell et al., 1998a Ohesaare puurauk 368.95 - 369 Adavere lade