Graptolithina

Formosograptus Bouček, Mihajlović et Veselinović, 1976

Selection of related publications
Urbanek, A. 1997. Late Ludfordian and early Přidoli monograptids from the Polish Lowland. Palaeontologia Polonica 56, 87-231.
Paškevičius, J. 1979. Biostratigraphy and Graptolites of the Lithuanian Silurian.
References based on distribution