Podocnemis lewyana

Illustration from 1852 The Magdalena River turtle, or Rio Magdalena river turtle, (Podocnemis lewyana) is a species of turtle in the family Podocnemididae,Podocnemis lewyana, Reptile Database which diverged from other turtles in the Cretaceous Period, 100 million years ago. It is endemic to northern Colombia, where its home range consists of the Sinú, San Jorge, Cauca, and Magdalena river basins. The species has been classified as "Critically Endangered" by the IUCN in 2015 and is considered the most threatened species of the family Podocnemididae. In less than 25 years, the species exhibited a population decline of over 80%. The decline is attributed to habitat destruction, pollution, over-harvest, commercial exploitation, hydrological changes due to electrical generation facilities, and climate change. While early conservation attempts were unsuccessful or unenforced, there has been a resurgence in studies aimed at discovering the most effective approaches.

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