Walkeripollis sp.A
- Citations total:
- 2
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| original | Late Barremian | Early Aptian | Gabon | Doyle,J.A. et al. Early Cretaceous tetrads, Zonasulculate pollen and Winteraceae. 1: Taxonomy, morphology and ultrastructure. | 1990 |
| original | Barremian | Aptian | North America | Doyle,J.A. et al. Early Cretaceous tetrads, zonasulcate pollen and Winteraceae. 2: Cladistic analysis and implication implications. | 1990 |