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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 | Middle Eocene | Colombia | Gonzalez-Guzman,A.E. A palynological study on the Upper Los Cuervos and Mirador Formations (Lower and Middle Eocene;Tibu area, Colombia) | 1967 | |
| original | Oligocene | Miocene | British Guiana | Hammen,T.Van Der et al. A palynological study on the Tertiary and Upper Cretaceous of British Guiana. | 1964 |
| details | Oligocene | Early Miocene | British Guiana | Hammen,T.Van Der et al. A palynological study on the Tertiary and Upper Cretaceous of British Guiana. | 1964 |