Extended Data Fig. 2: CT scanning of pectoral region of C. zhui.
From: Decoupling the skull and skeleton in a Cretaceous bird with unique appendicular morphologies
am, alular metacarpal; bi, bicipital tubercle; co, coracoid; dp, deltopectoral crest; dv, dorsal vertebra; fu, furcula; gl, glenoid; hu, humerus; ma, major metacarpal; m1 to m3, major digit phalanx 1 to 3; mi, minor metacarpal; mi1, minor digit phalanx 1; ol, olecranon; ra, radius; rd, radiale; sp, scapula; uc, uncinate; un, ulna; l/r, left/right side. The arrowheads denote the lateral fossae of the dorsal centra. Scale bar, 10 mm.
