Figure 12 in The Late Cenozoic Passerine Avifauna from Rackham's Roost Site, Riversleigh, Australia

Figure 12. Humeri of (A,D–F,I–J) fossil Petroicidae gen. et sp. indet. compared with those of (B,G) Microeca fascinans AM O.65147 and (C,H) Petroica phoenicea AM O.60008. (A,F) QM F 57901 left humerus. (D,I) QM F 50576, right humerus. (E,J) QM F 36366, distal left humerus. (A–E) caudal view, (F–J) cranial view. Some distinguishing features of Petroicidae shown: 1, crista deltopectoralis terminates well distally of crista bicipitalis; 2, proc. supracondylaris dorsalis broad with two apices; 3, fossa pneumotricipitalis II shallow and separate from fossa tricipitails I; 4, sulcus humerotricipitalis shallow; 5, proc. flexorius truncate and only slightly extends distally further than condylus dorsalis; 6, fossa pneumotricipitalis I pneumatic; 7, margo caudalis short and very low; 8, sulcus scapulotricipitalis wide and shallow; 9, distal end well expanded dorsally and 10, ventrally. Arrows indicate tooth punctures. Scale = 2 mm.