The tropical rainforests of northwestern Amazonia possess the highest plant diversity of any biome in the world. Understanding their origin, development, maintenance, and future in the face of ongoing global warming requires study of the plant fossil record and a predictive time framework. In this region, palynology is the best biostratigraphic tool because palynomorphs are the most abundant fossils. To construct a biostratigraphic zonation for the Neogene of the Solimões/Amazon basin in northwestern Amazonia, we analyzed palynological information from 25 sections, a total of 143,411 palynomorph grains from 622 samples. Using graphic correlation, we propose seven palynological zones that comprise the Miocene and a portion of the Pleistocene—the Pliocene is absent in the region. We then calibrated these zones against the geological timescale through correlation with a previously calibrated zonation and U/Pb geochronology.
How to translate text using browser tools
11 March 2025
A Palynological Zonation for the Neogene of the Solimões/Amazon Basin, Northwestern Amazonia
Carlos A. Jaramillo,
Carlos D'Apolito,
Silane A. F. da Silva-Caminha,
Dayenari Caballero-Rodríguez
ACCESS THE FULL ARTICLE
It is not available for individual sale.
This article is only available to subscribers.
It is not available for individual sale.
It is not available for individual sale.

Palynology
Vol. 49 • No. 2
May 2025
Vol. 49 • No. 2
May 2025
Amazonia tropics
biostratigraphy
Cenozoic
Neogene
pollen
South America
zonation