Important features of Caudipteryx-evidence from two nearly complete new specimens
Z Zhong-He, W Xiao-Lin, Z Fu-Cheng… - Vertebrata …, 2000 - vertpala.ac.cn
Two nearly complete specimens of Caudipteryx preserved a lot more new information about
its skeletal anatomy. It has some unexpected bird characters such as the manual digital
format of “2-3-2” as in advanced birds rather than the previously recognized “2-3-4” as in
Archaeopteryx, Confuciusornis and most theropods, the ungula of the third manual digit is
lost; in the skull the nasal opening is larger than the antorbital fenestra, the tail is composed
of 22 unfused caudals, there exist only 9 dorsal vertebrae, there are about 12 cervical …
its skeletal anatomy. It has some unexpected bird characters such as the manual digital
format of “2-3-2” as in advanced birds rather than the previously recognized “2-3-4” as in
Archaeopteryx, Confuciusornis and most theropods, the ungula of the third manual digit is
lost; in the skull the nasal opening is larger than the antorbital fenestra, the tail is composed
of 22 unfused caudals, there exist only 9 dorsal vertebrae, there are about 12 cervical …
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