Circulaletes
- Citations total:
- 2
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| details | Nd | Nd | Rueda-Gaxiola,J. A new systematic morphological classification for fossil pollen and spores. Nomenclature and parataxonomy. | 1969 | |
| details | Nd | Nd | Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). | 1966 |