A Miocene Hyperdiverse Crocodylian Community reveals Peculiar Trophic Dynamics in proto-Amazonian Mega-Wetlands

Amazonia contains one of the world’s richest biotas, but origins of this diversity remain obscure. Onset of the Amazon River drainage at approximately 10.5 Ma represented a major shift in Neotropical ecosystems, and proto-Amazonian biotas just prior to this pivotal episode are integral to understanding origins of Amazonian biodiversity, yet vertebrate fossil evidence is extraordinarily rare. Leer más.