Named By: Portis - 1882.
Classification: Chordata, Reptilia, Testudines, Pleurodira, Bothremydidae, Bothremydina, Foxemydina.
Species: P. provinciale (type), P. atlanticum, P. isonae.
Known locations: France - Rognac Limestone Formation. Spain - Conques Formation, Sierra Perenchiza Formation, Tremp Formation, Vitoria Formation.
Time period: Campanian to Maastrichtian of the Cretaceous.
Fossil representation: Several individuals.
Polysternon is a genus of bothremydid turtle that is known to have lived in Western Europe during the latest stages of the Cretaceous.
- The youngest species of Polysternon: A new bothremydid turtle from the uppermost Maastrichtian of the southern Pyrenees. - Cretaceous Research 35: 133–142 - J. Marmi, Á.H. Luján, V. Riera, R. Gaete, O. Oms & À. Galobart - 2012.