Acanthopsophosphaera triplicata
- Citations total:
- 2
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| details | Silurian | Early Devonian | USSR(Vologda) | Batanova,G.P. et al. Age of Pre-Middle Devonian sediments of the Volgograd District. | 1972 |
| details | Tremadocian | USSR(Voronezh) | Raskatova,L.G. et al. On the question of the age of the Mudstone Layers. (In: Some Questions on the Stratigraphy of the Sedimentary Cover of the Voronezh Anticline. V.P.Semenov, editor) | 1975 |