Graptolithina

Prochnygraptus singularis (Törnquist, 1892)

Synonymy list
1998     Prochnygraptus singularis (Törnquist) — Loydell et al., pp. 774
Selection of related publications
Loydell, D. K., Kaljo, D., Männik, P. 1998. Integrated biostratigraphy of the lower Silurian of the Ohesaare core, Saaremaa, Estonia. Geological Magazine 135, 6, 769-783. DOI:10.1017/S0016756898001423
References based on distribution