Template:Czerkas & Ji, 2002a
- Czerkas, S.A. & Ji, Q. 2002. A new rhamphorhynchoid with a headcrest and complex integumentary structures. In: Czerkas, S.J. (Ed.). Feathered Dinosaurs and the Origin of Flight. Dinosaur Museum Journal 1: 15-41. PDF (abridged)