New pelomedusoid turtles from the late Palaeocene Cerrej?on Formation of Colombia and their implications for phylogeny and body size evolution

Pelomedusoides comprises five moderate-sized extant genera with an entirely Southern Hemisphere distribution, but the fossil record of these turtles reveals a great diversity of extinct taxa, documents several instances of gigantism, and indicates a complex palaeobiogeographical history for the clad...