Skull of troodontid theropod Xixiasaurus henanensis gen. et sp. nov. (HGM 41HIII-0201 ; holotype), lower—middle Majiacun Formation (Upper Cretaceous: Coniacian—Campanian), Henan Province, China; in dorsal (A); lateral (B), and ventral (C) views.
From Lü et al., 2010