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Author - title
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| details | Givetian | USSR(Vologda) | Nazarenko,A.M. A characterization of the spore assemblages of the Middle Devonian Beds of the Province of Volgograd | 1964 | |
| original | Givetian | USSR(Bashkir ASSR) | Chibrikova,E.V. Spores from Devonian and older deposits of Bashkir | 1959 | |
| original | Givetian | USSR(Russian Platform) | Chibrikova,E.V. Spores from Devonian and older deposits of Bashkir | 1959 |