Figure 36. Character 74 and its postulated states. A3–A5 in Morphology-based phylogenetic analysis and classification of the family Rhinocryptidae (Aves: Passeriformes)

Figure 36. Character 74 and its postulated states. A3–A5 elements, dorsal surface, configuration: A, complete, not reduced – 74.0; B, A3 vestigial, A4 and A5 reduced – 74.1; C, A3 vestigial, A4 and A5 absent – 74.2. Stippled areas are cartilaginous tissue, non-stippled areas are calcified structures. A1/B1 elements are indicated. Syringes of (A) Myornis senilis (QCAZ 3724), (B) Eleoscytalopus indigoticus (MCP 2044), and (C) Merulaxis ater (MCP 2001) in dorsal view. Scale bars = 2 mm.