1972
Ambalodus pseudoplanus Viira — Viira, pp. 56, fig. text fig. 46
1974
Ambalodus pseudoplanus sp. n. — Viira, pp. 54, fig. VI 25,29, 31; text fig. 43-46
1990
Eoplacognathus pseudoplanus (Viira, 1972) — Männik & Viira, fig. 16:23
2001
Eoplacognathus pseudoplanus (Viira, 1972) — Viira et al., pp. 708
2011
Eoplacognathus pseudoplanus (Viira, 1972) — Viira, fig. 5
2012
Eoplacognathus pseudoplanus (Viira, 1972) — Hints, O. et al., fig. 5
2018
Eoplacognathus pseudoplanus — Wu et al.