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Author - title
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| details | Valanginian | USSR(WSL) | Markova,L.G. The history of development of the Early Cretaceous flora from the Western Siberian Lowlands (Based on palynological facts). | 1971 | |
| details | Early Jurassic | China(Liaoning) | Pu,R. et al. Mesozoic sporo-pollen assemblages in Western Lliaoning and their stratigraphical significance. (In: Mesozoic stratigraphy and palaeontology of Western Liaoning. L.Zhang et al, editor) | 1985 |