Reply to Dyke and Naish: European alvarezsauroids do not change the picture Xu, Xing ; Sullivan, Corwin ; Pittman, Michael ; Choiniere, Jonah N. ; Hone, David ; Upchurch, Paul ; Tan, Qingwei ; Xiao, Dong ; Tan, Lin ; Han, Fenglu Abstract Publication: Proceedings of the National Academy of Science Pub Date: May 2011 DOI: 10.1073/pnas.1104155108 Bibcode: 2011PNAS..108E.148X