A Jurassic ceratosaur from China helps clarify avian digital homologies
X. Xu,
J. M. Clark,
J. Mo,
J. Choiniere,
C. A. Forster,
G. M. Erickson,
D. W. E. Hone,
C. Sullivan,
D. A. Eberth,
S. J. Nesbitt,
Q. Zhao,
R. Hernández,
C.-k. Jia,
F.-l. Han, and
Y. Gou
2009
Article
Nature
459(7249):940-944
Find it at:
http://dx.doi.org/10.1038/nature08124