Modern crocodylian diversity is in decline and sympatry is rare, with usually no more than two or three species occurring in the same geographic area. Here Scheyer et al. identify a diversity peak in sympatric occurrence of at least seven new and previously characterized crocodylian species during the Miocene in South America.
- T. M. Scheyer
- O. A. Aguilera
- M. R. Sánchez-Villagra
