1960
Pseudosphaerexochus wolkae n. sp. — Kielan, pp. 134, fig. 24:5; 25:1-2; text fig. 37
1973
Skelipyx cf. cancrura — Bergström, fig. 3:13
1973
Skelipyx sp. — Bergström, fig. 2:3
1991
Pseudosphaerexochus (Pseudosphaerexochus) wolkae — Kielan-Jaworowska et al., pp. 229, fig. 8B-D