†Prototrox transbaikalicus Nikolajev 2000

Nikolajev 2000. A new subfamily of lamellicorn beetles (Coleoptera, Scarabaeidae) from the Lower Cretaceous of Transbaikalia and Mongolia, and its position within the superfamily. Paleontologicheskii Zhurnal, 4, Iyul-Avgust 2000: 63-66