ผลต่างระหว่างรุ่นของ "นกเป็ดผี"

 

== อ้างอิง ==

 

*{{aut|Benton, M. J.; Cook, E.; Grigorescu, D.; Popa, E. & Tallódi, E.}} (1997): Dinosaurs and other tetrapods in an Early Cretaceous bauxite-filled fissure, northwestern Romania. ''Palaeogeography, Palaeoclimatology, Palaeoecology'' '''130''': 275-292. <small>{{doi|10.1016/S0031-0182(96)00151-4}}</small> [http://palaeo.gly.bris.ac.uk/Benton/reprints/1997Romania.pdf PDF fulltext]