Walchianthus
- Citations total:
- 3
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| details | Recent | Nd | Potonie,R. Position of the Paleozoic spore genera in the natural system. | 1954 | |
| details | Paleozoic | Nd | Potonie,R. The spores of Palaeozoic plants in the natural (Morphologic) system | 1954 | |
| details | Nd | Nd | Pant,D.D. Suggestions for the classification and nomenclature of fossil spores and pollen grains | 1954 |