Chunling; Lu Junchang; Liu Jinyuan; and Ji Qiang. New choristodera from the Lower Cretaceous Jiufotang Formation in Chaoyang area, Liaoning China. Geological
ornithurine bird (Hongshanornithidae) from the Jiufotang Formation of Chaoyang, Liaoning, China (PDF). Vertebrata PalAsiatica. 2011, 49 (2): 195–200 [2024-03-23]