Trilobita

Ptychopyge volkhovense Balashova, 1964

Synonymy list
1964     Ptychopyge volkhovense sp. nov. — Balashova, pp. 24, fig. 2:14; 15:1; 7:7; 9:12
Selection of related publications
Balashova, E. A. 1964. Morphology, phylogeny and stratigraphic meaning of the early Ordovician Ptychopyginae of Baltic. Voprosy paleontologii , 3-56. Voprosy paleontologi, IV, pp. 3-56.
References based on distribution