Late Maastrichtian pterosaurs from North Africa and mass extinction of Pterosauria at the Cretaceous-Paleogene boundary
Fig 3
T. regalis FSAC-OB 1, deltopectoral crest.
In (A), distal view, (B) apical view, and (C) proximal view. Abbreviations: apx, apex of deltopectoral crest; dis, distal margin of deltopectoral crest; prx, proximal margin of deltopectoral crest; uc, ulnar crest.