O’Connor, J. K.; Zhang, Y.; Chiappe, L. M.; Meng, Q.; Quanguo, L.; Di, L. (2013). "A new enantiornithine from the Yixian Formation with the first recognized avian enamel specialization". Journal of Vertebrate Paleontology. 33 (1): 1–12. Bibcode:2013JVPal..33....1O. doi:10.1080/02724634.2012.719176. S2CID85261944.
O’Connor, J. K.; Zhang, Y.; Chiappe, L. M.; Meng, Q.; Quanguo, L.; Di, L. (2013). "A new enantiornithine from the Yixian Formation with the first recognized avian enamel specialization". Journal of Vertebrate Paleontology. 33 (1): 1–12. Bibcode:2013JVPal..33....1O. doi:10.1080/02724634.2012.719176. S2CID85261944.
O’Connor, J. K.; Zhang, Y.; Chiappe, L. M.; Meng, Q.; Quanguo, L.; Di, L. (2013). "A new enantiornithine from the Yixian Formation with the first recognized avian enamel specialization". Journal of Vertebrate Paleontology. 33 (1): 1–12. Bibcode:2013JVPal..33....1O. doi:10.1080/02724634.2012.719176. S2CID85261944.