liik
Streptograptus crispus (Lapworth, 1876)
Sünonüümika
1876     Monograptus crispus sp. nov. — Lapworth , lk. 50, joon. 20:7a-c
1907     Monograptus gemmatus — Törnquist , lk. 21, joon. 3:26-27
1913     Monograptus crispus, Lapworth — Elles et Wood , lk. 456-457, joon. 45:6a-f
1984     Monograptus crispus — Ulst et al. , lk. 103
1988     Globosograptus crispus (Lapworth, 1876) — Obut et al. , lk. 78, joon. VII 6
1994     Monograptus crispus Lapworth, 1876 — Zalasiewicz , lk. 392, joon. 4A-H
2003     Streptograptus crispus Lapworth, 1876 — Loydell et al. , lk. 211, joon. 6g, n
2004     Streptograptus crispus (Lapworth, 1876) — Loydell et Maletz , lk. 87-88, joon. 21
Valik taksonit käsitlevast teaduskirjandusest
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
Ulst, R. Ž., Gailite, L. K., Springis, T. K. 1984. Lithostratigraphic subdivision of the subsurface Ordovician rocks of the Jelgeva Depression.  Stratigrafiâ drevnepaleozojskih otloženij Pribaltiki, pp. 63-76.   Eesti NSV Teaduste Akadeemia. 
Thorslund, P. 1948. On the Silurian beds above the Pentamerus limestone in Jemtland. Description of fossils.  Sveriges Geologiska Undersökning   42,   3,   1-37.
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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 962.39 - Aeroni lade
 - Loydell et al., 1998a Ohesaare puurauk 371.39 - Adavere lade
 - Ulst et al., 1984 Kybartai 14 puurauk Llandovery
 - Thorslund, 1948a Llandovery