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From
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To
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Geolocation
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Author - title
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Year
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| details | Miocene | Colombia | Sol© de Porta,N. Contribution to the palynological study of the Tertiary in Colombia. | 1961 | |
| details | Eocene | California | Norris,G. et al. A descriptive index of genera of fossil Dinophyceae and acritarcha. | 1965 | |
| details | Nd | Nd | M¤dler,K.A. Hystrichophyta and acritarchs | 1967 |