Fig. 5

Comparison of the scapula and coracoid elements from a an un-named tapejarid (SMNK PAL 3843). b Microtuban altivolans (SMNK PAL 6595). c Quetzalcoatlus sp. (TMM 42138-1). All line tracings have been scaled to the same size, based on the coracoid length. The coracoid: scapula ratio of 1.30 in M. altivolans is similar to that of other azhdarchoid pterosaurs e.g., SMNK PAL 3843, 1:1.39; unlabelled azhdarchoid indet. (SMNK), 1.27; MN 6588-V, 1:1.27 and is clearly distinct from that of other more derived pterosaurs, e.g., Shenzhoupterus chaoyangensis (1:1) and Quetzalcoatlus sp. (1:1). c coracoid, cf coracoid flange, gf glenoid fossa, approximate location, s scapula, sta sternal articulation