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Late Maastrichtian pterosaurs from North Africa and mass extinction of Pterosauria at the Cretaceous-Paleogene boundary

Fig 15

FSAC-OB 203, giant azhdarchid (?Arambourgiania) ulna.

Middle shaft and distal end of the left ulna, in posterior view. Abbreviations: ut, ulnar tubercle; vp, ventral process.

doi: https://doi.org/10.1371/journal.pbio.2001663.g015