Spumiosina
- Citations total:
- 3
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| original | Early Cambrian | USSR(Kirghiz SSR) | Lopukhin,A.S. Plant microfossils in the oldest deposits of North northern Tien-Shan. (In: The Importance of Palynological Analysis for the Stratigraphic and Paleofloristic Investigations. M.I. Nejshtadt, editor. Papers for the Second International Palynology Conference., Utrecht,1966) | 1966 | |
| details | Late Vendian | USSR(European) | Sokolov,B.S. The problem of the boundary between the Precambrian and the Cambrian | 1974 | |
| details | Nd | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |