Pteridospermales
- Citations total:
- 3
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| details | Carboniferous | Permian | Nd | Remy,W. Monosaccate pteridospermous pollen of the Carboniferous and Permian as well as general considerations of Paleozoic pollen with air sacs. | 1954 |
| details | Liassic | W.Germany | Reissinger,A. Pollen analysis extended to all sedimentary rocks of the geological past. | 1950 | |
| details | Middle Cambrian | Late Cambrian | India | Jacob,K. et al. Spores and tracheides of vascular plants from the Vindyan system, India. | 1953 |