1. Buffetaut E et al (2005) Minute theropod eggs and embryo from the Lower Cretaceous of Thailand and the dinosaur-bird transition. Naturwissenschaften 92:477–482. doi: 10.1007/s00114-005-0022-9
2. Chiappe LM (1995) The phylogenetic position of the Cretaceous birds of Argentina: Enantiornithes and Patagopteryx deferrariisi. In: Peters DS (ed) Acta Palaeornithologica, vol 181. Courier Forschungsinstitut Senckenberg, Senckenberg, pp 55–63
3. Chiappe LM, Ji S, Ji Q, Norell MA (1999) Anatomy and systematics of the confuciusornithidae (Theropoda: Aves) from the late Mesozoic of Northeastern China. Bull Am Mus Nat Hist 242:1–89
4. Chiappe LM, Ji S, Ji Q (2007) Juvenile birds from the early cretaceous of China: implications for enantiornithine ontogeny. Am Mus Novit 3594:1–46. doi:10.1206/0003-0082(2007)3594[1:JBFTEC]2.0.CO;2
5. Chinsamy A, Elzanowski A (2001) Evolution of growth pattern in birds Nature 412:402–403. doi: 10.1038/35086650