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. 2011 Mar 21;6(3):e17932. doi: 10.1371/journal.pone.0017932

Figure 25. Left ectopterygoid of Acrocanthosaurus atokensis (NCSM 14345).

Figure 25

Ectopterygoid in (A) dorsal, (B) medial, (C) ventral, and (D) lateral views. emr, ectopterygoid medial recess; fo, foramen; j, jugal contact; jr, jugal ramus of ectopterygoid; pt, pterygoid contact; stf, subtemporal fenestra.