| 1966 Lithelius? sp. - Benson p. 265-266; pl. 18, figs. 5-6 |
| 1967 ?Spongurus ? sp. - Petrushevskaya p. 33; fig, 16, no. 3; fig. 26, no. 1 |
| 1971 Spongurus ? sp. - Ling et al. p.711; pl. 1, fig. 6 |
| 1977 Spongurus (?) sp. - Kling p. 217; pl. 2, fig. 3 |
| 1977 Spongurus sp. - Molina-Cruz p. 333; pl. 1, fig. 2 |
| 1983 Lithelius(?) sp. - Benson p. 505 |
| 1998 Larcospira sp. 1 - Bjørklund et al. pl. 1, figs 13-14 |
