孔子鸟目(鸟类：尾综骨类)的分类厘定

王敏, 邹晶梅, 周忠和

A taxonomical revision of the Confuciusornithiformes (Aves: Pygostylia)

WANG Min, Jingmai O’CONNOR, ZHOU Zhong-He

Fig. 5 Cranial morphology of Changchengornis hengdaoziensis, GMV 2129 A, B. skull in right lateral view preserved on GMV 2129a; C, D. skull in left lateral view preserved on GMV 2129b. A, C. photograph; B, D. line drawing. The dorsal process of the maxilla (labeled as 'mx') identified in Chiappe et al. (1999) is reinterpreted to be the lacrimal here (see text for explanation) Scale bars = 10 mm (A, C); line drawings (C, D) are not to scale