Ephedra californica
- Citations total:
- 2
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| details | Recent | Nd | Zavada,M.S. Angiosperm origins and evolution based on dispersed fossil pollen ultrastructure. (In: Historical Perspectives of Angiosperm Evolution.) | 1984 | |
| details | Nd | Nd | Mchedlishvili,N.D. et al. Occurrence of Araceae pollen in the Lower Cretaceous sediments. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) | 1973 |