Protohaploxypinus arizonicus
- Citations total:
- 3
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| original | Late Carnian | Arizona | Fisher,M.J. et al. Palynology of the Petrified Forest Member of the Chinle Formation, (Upper Triassic), Arizona, USA. | 1984 | |
| details | Carnian | Arizona | Boersma,M. et al. Triassic palynomorphs, index to genera and species | 1987 | |
| details | Early Carnian | Middle Carnian | Virginia | Cornet,B. Late Triassic angiosperm-like pollen from the Richmond Rift Basin of Virginia, USA. | 1989 |