Trionyx is a genus of softshell turtles belonging to the family Trionychidae. In the past many species in the family were classified in this genus, but today the African or Nile softshell turtle (T. triunguis), a relatively large aquatic piscivore, is the only extant softshell still classified as Trionyx. The other species still assigned to this genus that lived in Italy and Austria are only known from fossils.
Books[]
The Dinosaurs of Jurassic Park: The Lost World[]
Trionyx appears in the chapter Alongside Dinosaurs along with Archelon, Proganochelys, and Mongolemys as example of turtles that coexisted with dinosaurs. However, this is inacurate because Trionyx first appears during the Miocene period, long after the dinosaurs.