†Psittacosaurus mazongshanensis Xu 1997

Xu 1997. A new psittacosaur (Psittacosaurus mazongshanensis sp. nov.) from Mazongshan area, Gansu Province, China. Dong, Zhiming[Ed]. Sino-Japanese silk road dinosaur expedition., China Ocean Press, Beijing., 1997: i-viii, 1-114. Chapter pagination: 48-67