^ 1.01.1Chiappe, Luis M. [ttp://digitallibrary.amnh.org/dspace/bitstream/2246/4981/1/N3083.pdf Enantiornithine (Aves) Tarsometatarsi from the Cretaceous Lecho Formation of Northwestern Argentina] (PDF). American Museum Novitates. 1993, 3083: 1–27 [2011-02-06]. (原始内容存档(PDF)于2007-06-12).