1986Ptychodictyon ancestralis Valiukevičius, sp. nov. — Valiukevičius & Karatajūtė-Talimaa, pp. 114, fig. II 5-7,
1998Ptychodictyon ancestralis Valiukevičius — Valiukevičius, pp. 7
Selection of related publications
Valiukevičius, J., Karatajūtė-Talimaa, V. 1986.
Kompleks češuj akantodov iz osnovaniâ srednego devona Pribaltiki i Belorussii.Biofacies and fauna of the Silurian and Devonian basins of the Baltic, pp. 110-122.