Lets say the uplift of the Northern Andes and formation of the modern transcontinental Amazon river never occurred, how would that have affected the Great Amazonian Biotic Interchange from the Late Neogene?

https://www.sciencedirect.com/science/article/abs/pii/S0921818121001399

On 4/29/2025 at 9:15 AM, Sohan Lalwani said:

Lets say the uplift of the Northern Andes and formation of the modern transcontinental Amazon river never occurred, how would that have affected the Great Amazonian Biotic Interchange from the Late Neogene?

https://www.sciencedirect.com/science/article/abs/pii/S0921818121001399

From what I know there is 1 study, but I am extremely curious.