Supplementary material Vallejo et al. Nannos NW Colombia

We present a detailed biostratigraphic and chronostratigraphic framework for onshore deposits in Colombia, using calcareous nannofossil biostratigraphy from the Caribbean, Pacific, and inter-Andean basins. Our findings reveal a strong correlation between nannofossil biostratigraphy and the historical biostratigraphic framework established using mollusks, foraminifera, palynology, and ammonites. Despite preservation challenges in certain deposits, the integration of our results with existing data has enabled the construction of a comprehensive regional view of the northwestern South American basins. This framework provides a foundation for understanding the paleoenvironments and geological evolution of the Caribbean Sea and eastern Pacific Ocean.

本报告详细阐述了哥伦比亚陆地沉积物的生物地层学和年代地层学框架，该框架基于加勒比海、太平洋以及安德斯山脉之间的盆地中的钙质有孔虫生物地层学。我们的研究成果揭示了纳米有孔虫生物地层学与利用贝类、有孔虫、孢粉学和菊石建立的历史生物地层学框架之间的紧密关联。尽管某些沉积物在保存方面存在挑战，但将我们的研究结果与现有数据相结合，已有助于构建南美洲西北部盆地的综合性区域视角。此框架为理解加勒比海及东太平洋的古环境和地质演化奠定了基础。