Graptolithina

Cucullograptus Urbanek, 1954

Selection of related publications
Loydell, D. K. 2012. Graptolite biozone correlation charts. Geological Magazine 149, 1, 124–132. DOI:10.1017/S0016756811000513
Urbanek, A. 1966. On the morphology and evolution of the Cucullograptinae (Monograptidae, Graptolithina). Acta Palaeontologica Polonica 11, 3-4, 292-544.
References based on distribution