(Platysternon megacephalum)
The big-headed turtle (Platysternon megacephalum) is a species of turtle in the family Platysternidae from Southeast Asia and southern China.For Madagascar see Madagascan big-headed turtle.Previously considered a distinct family placed on occasion in "Kinosternoidea",it was later moved to the Emydidae.[citation needed] With the Geoemydidae being split off from these,it seems wisest to reinstate,at least for the time being,the Platysternidae.[citation needed] This,as well as the subfamily and the genus Platysternon,are monotypic.