Graptolithina

Dyadograptus praecursor Obut, 1960

Synonymy list
1960     Dyadograptus praecursor sp. nov. — Obut, pp. 147, fig. 1:2-2a, b
1964     Dyadograptus praecursor Obut — Obut, fig. IV 8
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. Eesti NSV Teaduste Akadeemia Geoloogia Instituudi Uurimused V, pp. 143-157.
References based on distribution