Cactaceae
- Citations total:
- 2
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| details | Late Eocene | USSR(Kazakh SSR) | Zaklinskaya,E.D. Spore-pollen spectra of the Upper Eocene of northern Priaral | 1954 | |
| details | Late Oligocene | Alaska | Wiggins,V.D. et al. Changes in Non-Marine palynofloras from the Oligocene of Alaska, USA. | 1988 |