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Fig. 1. Skeletal reconstruction of the Cretaceous pterosaur Anhanguera
santanae in dorsal view, showing the elongated wing-finger (wf)
supporting the cheiropatagium (ch), the unique pteroid bone (pt) supporting
the propatagium (pro) and the cruropatagium (cr) medial to the leg. Two
possible reconstructions of the pteroid are shown, with corresponding outlines
of the propatagium: a forward-pointing orientation (solid line), and a medial
orientation (broken line). Scale bar, 200 mm. Additional abbreviations: dc,
distal carpal; f, femur; h, humerus; mc, medial carpal; pc, proximal carpal;
r, radius; t, tibiotarsus; u, ulna; wf, wing-finger; wm, wing-finger
metacarpal.