Duplicisporites gravis
- Citations total:
- 3
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| details | Early Keuper | E.Germany | Schulz,E. Stratigraphic distribution of spores and pollen from the Upper Permian to the Lowermost Lias in northern Middle Europe. | 1966 | |
| original | Keuper | Switzerland | Leschik,G. The Keuper flora of Neuewelt near Basel.2. TheIso and microspores. | 1955 | |
| details | Carnian | Switzerland | Boersma,M. et al. Triassic palynomorphs, index to genera and species | 1987 |