Figure 4
From: Halszkaraptor escuilliei and the evolution of the paravian bauplan

Comparative anatomy of the ilium in selected tetrapods. Ilium of Halszkaraptor (A) after Cau et al.32, ilium of Anchiornis (B) after Xu et al.91, ilium of Tyrannosaurus (C), and ilium of Deinonychus (D). ace, acetabulum; sac, supraacetabular crest; stp, supratrochanteric process; pp, posterior process.