Phrynops tuberosus

Phrynops tuberosus, commonly known as the Cotinga River toadhead turtle, is a large species of side-necked turtle in the family Chelidae. The species is endemic to South America.

Taxonomy
In the past, Phrynops tuberosus has been considered a subspecies of Phrynops geoffroanus, but since 2021 it is afforded full species status.