Journal article
Primitive wing feather arrangement in Archaeopteryx lithographica and Anchiornis huxleyi
Citation
Longrich, N. R.; Vinther, J.; Meng, Q.; Li, Q.; Russell, A. P. (2012). Primitive wing feather arrangement in Archaeopteryx lithographica and Anchiornis huxleyi. Current Biology 22(23): 2262-2267. doi:10.1016/j.cub.2012.09.052