A5068400729- Geological and Tectonic Studies in Latin America
- Paleontology and Stratigraphy of Fossils
- Fossil Insects in Amber
- Geological and Geochemical Analysis
- Lepidoptera: Biology and Taxonomy
University of Caldas
2023
The Upper Cretaceous deposits of northwestern Colombia accumulated in two regions with distinct tectonic settings. eastern deposits, consisting Turonian–Maastrichtian rocks from the Magdalena Valley (UMV) and Cesar-Rancheria basins, were deposited by an epicontinental sea that partially covered South American Plate. In contrast, western which comprise a series highly faulted folded Coniacian–Maastrichtian Sinú-San Jacinto Folded Belt (SSJFB), Gorgonilla Island, Western Cordillera, influenced...
Several Cretaceous amber-bearing localities were recently discovered, including the Oriente Basin of Ecuador (Hollín Formation), and Eastern Cordillera Colombia (Une Formation at La Popa mine). A palynological study 48 samples was carried out to date them assess their broad floristic content. We Hollín as spanning late Aptian early Albian based on co-occurrence Callialasporites trilobatus, Retitricolpites operculatus dampieri, among others. The sandstone lens containing amber from Une mine...