PaleoDB taxon number: 234799
Full reference: R. Owen. 1853. Part I. A monograph on the fossil chelonian reptiles of the Wealden clays and Purbeck limestones. Monograph on the Fossil Reptilia of the Wealden and Purbeck Formations. Palaeontographical Society 7(25):1-12
Sister taxon: Platemys platycephala
Type specimen: BMNH 2268, a partial shell (left hyoplastral). Its type locality is Tilgate Forest, Cuckfield, which is in a Valanginian terrestrial sandstone in the Tunbridge Wells Sand Formation of the United Kingdom.