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. 2015 Oct 19;112(44):E5963–E5971. doi: 10.1073/pnas.1516490112

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Fig. 5. — (A and B) Rostrum of Eastern meadowlark S. magna in dorsal (A) and lateral (B) aspects. (Left and Center) Fossils. (Right) Modern, UF 31012 (PB 17171). (C and D) Humerus of Eastern bluebird S. sialis in anconal (C) and palmar (D) aspects. (Left and Center) Fossils. (Right) Modern, UF 46724. (E and F) Humerus of cave swallow P. fulva in anconal (E) and palmar (F) aspects. (Left) Fossil. (Right) Modern, UF 33972 (PB 35137). (G and H) Tarsometatarsus of chipping sparrow S. passerina in acrotarsial (G) and plantar (H) aspects. (Left) Fossil. (Right) Modern, UF 28905 (PB 20060). (I and J) Tarsometatarsus of brown-headed nuthatch S. pusilla in acrotarsial (I) and plantar (J) aspects. (Left) Fossil. (Right) Modern, UF 28653 (PB 17024). All fossils are from Sawmill Sink, Abaco, The Bahamas. (Scale bars: 10 mm.) PB, formerly in collection of Pierce Brodkorb.