Selection of related publications
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.
List of species
1. Dyadograptus praecursor Obut, 1960 | Lasnamägi Stage
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Classification
Organism group | Biota |
Kingdom | Animalia |
Phylum | Hemichordata |
Class | Pterobranchia |
Subclass | Graptolithina |
Family | Cyclograptidae |
Genus | Calycotubus |
Conitubus | |
Cyclograptus | |
Dendrotubus | |
Discograptus | |
Dyadograptus | |
Species | praecursor |
Genus | Galeograptus |
Kozlowskitubus | |
Multitubus | |
Parvitubus | |
Reticulograptus |
References based on distribution
- Obut, 1960 Osmussaar 1 Lasnamägi Stage