FIG. 5 in Systematic reinterpretation of Piksi barbarulna Varricchio, 2002 from the Two Medicine Formation (Upper Cretaceous) of Western USA (Montana) as a pterosaur rather than a bird

FIG. 5. — Piksi barbarulna Varricchio, 2002 (holotype, MOR 1113). Distal end of left ulna in anterior (A), posterior (B), and distal views (C). Abbreviations: ig, intercondylar groove; lr, lateral ridge; mr, medial ridge; tub, tuberculum; vr, ventral ridge. Scale bar: 5 mm.