Helicosporium type Kalg.& McIn.,1991
- Citations total:
- 1
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| original | Middle Miocene | Alaska | White,J.M. et al. Palynology, paleoclimatology and correlation of Middle Miocene Beds from Porcupine River, (Locality 90-1), Alaska. (In: Tertiary Quaternary Boundaries. T.A. Ager et al, editors) | 1994 |