1969
Baltisphaeridium varium Volkova sp. nov. — Volkova, pp. 224, fig. L 4-8; LI 13,14
1971
Baltisphaeridium varium Volkova — Fridrichsone, pp. 10, fig. II 1-5
1982
Goniosphaeridium varium (Volkova 1969) comb. nov. — Downie, pp. 278, fig. 10a-b, f
2011
Polygonium varium (Volkova) Moczydlowska — Palacios et al., pp. 52