Species
Chaunograptus ramulus (Öpik, 1928)
Synonyymit
1928 Thallograptus ramulus — Öpik
1930 Hormograptus ramulus — Öpik , pp. 8
1958 Chaunograptus ramulus (Öpik) — Obut & Rytzk , pp. 139
Aiheeseen liittyvät julkaisut
Obut, A. M. 1960. Correlation of some parts of Estonian Ordovician and Silurian deposits according to graptolites. ENSV TA Geoloogia Instituudi Uurimused V, 143-157.
Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Hemichordata |
| Class | Pterobranchia |
| Subclass | Graptolithina |
| Order | Rhabdopleuridae |
| Genus | Chaunograptus |
| Species | defensor |
| novellus | |
| ramulus | |
| sphaericola |
Levinneisyys ja viitteet
- Obut, 1960 Keila Stage