Sphenophyllum fertile
- Citations total:
- 4
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| details | Nd | Nd | Potonie,R. Position of the Paleozoic spore genera in the natural system. | 1954 | |
| details | Nd | England | Potonie,R. Synopsis of the Sporae in situ. | 1962 | |
| details | Nd | Nd | Potonie,R. Fossil sporae in situ. Comparison with the sporae dispersae. Addition to the synopsis of the sporae in situ. | 1965 | |
| details | Carboniferous | Nd | Bharadwaj,D.C. et al. Suggestions for a morphological classification of sporae dispersae. | 1968 |