1848
Leptaena transversalis var. undulata — Salter, pp. 372
1866
Leptaena transversalis var. undulata — Salter, pp. 267
1928
Sowerbyella undulata — Jones, pp. 452, fig. XXIV 3-6
1967
non Sowerbyella undulata — Rybnikova
, pp. 187, fig. XVIII 11-13 1984
Ygerodiscus undulataus (Salter, 1848) — Rubel et al., pp. 13
2004
Eoplectodonta (Ygerodiscus) undulata — Musteikis & Cocks, pp. 472