1. A. Balmford, A. L. R. Thomas, and I. L. Jones, “Aerodynamics and the Evolution of Long Tails in birds,” Nature361, 628–631 (1993).

   Article  Google Scholar 

2. P. M. Barrett and J. M. Hilton, “The Jehol Biota (Lower Cretaceous, China): New Discoveries and Future Prospects,” Integr. Zool.1(1), 15–17 (2006).

   Article  Google Scholar 

3. J. J. Baumel, “Functional Morphology of the Tail Apparatus of the Pigeon (Columba livia),” Adv. Anat. Embryol. Cell. Biol.110, 1–115 (1988).

   Google Scholar 

4. M. M. Chang, P.-J. Chen, Y. Q. Wang, and Y. Wang,The Jehol Biota: The Emergence of Feathered Dinosaurs, Beaked Birds and Flowering Plants (Shanghai Sci. Tech. Publ., Shanghai, 2003).

   Google Scholar 

5. S. Chatterjee,The Rise of Birds: 225 Million Years of Evolution (John Hopkins Univ. Press, Baltimore, 1997).

   Google Scholar 

6. L. M. Chiappe, “A Diversity of Early Birds,” Natur. Hist.6, 52–55 (1995).

   Google Scholar 

7. L. M. Chiappe, J. S. An, Q. Ji, and M. A. Norell, “Anatomy and Systematics of the Confuciusornithidae (Aves) from the Late Mesozoic of Northeastern China,” Bull. Am. Mus. Natur. Hist.242, 1–89 (1999).

   Google Scholar 

8. L. M. Chiappe and G. J. Dyke, “The Mesozoic Radiation of Birds,” Ann. Rev. Ecol. Syst.33, 91–124 (2002).

   Article  Google Scholar 

9. L. M. Chiappe and G. J. Dyke, “The Early Evolutionary History of Birds,” J. Paleontol. Soc. Korea22(1), 133–151 (2006).

   Google Scholar 

10. J. Dalsätt, Z.-H. Zhou, F.-C. Zhang, and P. G. P. Ericson, “Food Remains inConfuciusornis sanctus Suggest a Fish Diet,” Naturwissenschaft93, 444–446 (2006).

    Article  Google Scholar 

11. A. J. De Ricqles, K. Padian, J. R. Horner, et al., “Osteohistology ofConfuciusornis sanctus (Theropoda: Aves),” J. Paleontol.23(2), 373–386 (2003).

    Article  Google Scholar 

12. A. Elzanowski, “Biology of Basal Birds and the Origin of Avian Flight,” inProceedings of the 5th Symposium of the Society of Avian Paleontology and Evolution (Sci. Press, Beijing, 2002), pp. 211–226.

    Google Scholar 

13. A. Elzanowski, “Limb Eco-morphology of the Most Primitive Birds,” J. Ornithol.147 (Abstracts of XXIV International Ornithological Congress, Berlin), 111 (2006).

    Google Scholar 

14. A. Feduccia,The Origin and Evolution of Birds, 2nd ed. (Yale Univ. Press, New Haven, 1999).

    Google Scholar 

15. H. I. Fisher, “The Occurrence of Vestigial Claws on the Wings of Birds,” Am. Midland Natur.23, 234–243 (1940).

    Article  Google Scholar 

16. H. Frieling, “Funktionell-anatomische Untersuchungen am Scherenschnabel (Rynchops nigra intercedens Saunders),” J. Ornithol.84(3), 434–441 (1936).

    Article  Google Scholar 

17. S. M. Gatesy and K. P. Dial, “From Frond to Fan:Archaeopteryx and the Evolution of Short-tailed Birds,” Evolution.50(5), 2037–2048 (1996).

    Article  Google Scholar 

18. U. B. Göhlich and G. Mayr, “Zu Besuch beiConfuciusornis and Co. in Nordost-China,” Natur. Mus.131(11), 401–409 (2001).

    Google Scholar 

19. J. Guan, L. M. Chiappe, and S. Hu, “A New Specimen ofConfuciusornis sanctus from Liaoning’s Yixian Formation,” Sel. Vertebr. Paleontol. Beijing Natur. Hist. Mus.100, 102–106 (1997).

    Google Scholar 

20. Z. Guo, J. Liu, and X. Wang, “Effect of Mesozoic Volcanic Eruptions in the Western Liaoning Province, China on Palaeoclimate and Palaeoenvironment,” Sci. China Ser. D Earth Sci.46, 1261–1272 (2003).

    Google Scholar 

21. H. He, X.-L. Wang, F. Wang, et al., “Timing of the Jiufotang Formation (Jehol Group) in Liaoning, Northeastern China and Its Implications,” Geoph. Res. Lett.31(12), L12605 (2004).

    Article  Google Scholar 

22. J. A. Hopson and L. M. Chiappe, “Pedal Proportions of Living and Fossil Birds Indicate Arboreal or Terrestrial Specialization,” J. Vert. Paleontol.18(3), 52A (1998).

    Google Scholar 

23. L.-H. Hou,Mesozoic Birds of China (Nan Tou, Taiwan, 1997).

    Google Scholar 

24. L.-H. Hou,Mesozoic Birds of China (Phoenix Valley Prov., Taiwan, 2001).

    Google Scholar 

25. L.-H. Hou, L. M. Chiappe, F.-C. Zhang, and C. M. Chuong, “New Early Cretaceous Fossil from China Documents a Novel Trophic Specialization for Mesozoic Birds,” Naturwissenschaft91, 22–25 (2004).

    Article  Google Scholar 

26. L.-H. Hou, L. D. Martin, Z.-H. Zhou, and A. Feduccia, “Early Adaptive Radiation of Birds: Evidence from Fossils from Northeastern China,” Science274(5290), 1164–1167 (1996).

    Article  Google Scholar 

27. L.-H. Hou, L. D. Martin, Z.-H. Zhou, and A. Feduccia, “Archaeopteryx to Opposite Birds—Missing Link from the Mesozoic of China,” Vertebr. Palasiat.37(2), 88–95 (1999a).

    Google Scholar 

28. L.-H. Hou, L. D. Martin, Z.-H. Zhou, et al., “A Diapsid Skull in a New Species of the Primitive Bird Confuciusornis,” Nature.399, 679–682 (1999b).

    Article  Google Scholar 

29. L.-H. Hou, Z.-H. Zhou, Y.-C. Gu, and Y.-T. Sun, “Introduction to Mesozoic Birds from Liaoning, China,” Vertebr. Palasiat.33(4), 261–271 (1995a).

    Google Scholar 

30. L.-H. Hou, Z.-H. Zhou, Y.-C. Gu, and H. Zhang, “Confuciusornis sanctus, a New Late Jurassic Sauriurine Bird from China,” Chin. Sci. Bull.40(18), 1545–1551 (1995b).

    Google Scholar 

31. L.-H. Hou, Z.-H. Zhou, L. D. Martin, and A. Feduccia, “A Beaked Bird from the Jurassic of China,” Nature377(6550), 616–618 (1995c).

    Article  Google Scholar 

32. L.-H. Hou, Z.-H. Zhou, F. Zhang, and Y.-C. Gu,Mesozoic Birds from Western Liaoning in China (Liaoning Sci. Tech. Publ. House, Liaoning, 2002).

    Google Scholar 

33. J. A. Jeffries, “On the Claws and Spurs on Birds’ Wings,” Proc. Bost. Soc. Natur. Hist.21, 301–306 (1881).

    Google Scholar 

34. Q. Ji, L. M. Chiappe, and S.-A. Ji, “A New Late Mesozoic Confuciusornithid Bird from China,” J. Vertebr. Paleontol.19(1), 1–7 (1999).

    Google Scholar 

35. E. N. Kurochkin, “Synopsis of Mesozoic Birds and Early Evolution of Class Aves,” Archaeopteryx13, 47–66 (1995).

    Google Scholar 

36. E. N. Kurochkin, “The Basal Diversification of Feathered Creatures,” inEvolution of the Biosphere and Biodiversity (KMK, Moscow, 2006a), pp. 219–232 [in Russian].

    Google Scholar 

37. E. N. Kurochkin, “Parallel Evolution of Theropod Dinosaurs and Birds,” Entomol. Rev.86(Suppl. 1), 45–58 (2006b).

    Article  Google Scholar 

38. O. C. Marsh, “Discovery of a Remarkable Fossil Bird,” Am. J. Sci. Ser. 33(13), 56–57 (1872a).

    Google Scholar 

39. O. C. Marsh, “Notice of a New and Remarkable Fossil Birds,” Am. J. Sci. Ser. 34, 344 (1872b).

    Google Scholar 

40. O. C. Marsh, “Preliminary Description ofHesperornis regalis, with Notices of Four Other Species of Cretaceous Birds,” Am. J. Sci. Ser. 33, 360–365 (1872c).

    Google Scholar 

41. O. C. Marsh, “Notice of NewOdontornithes,” Am. J. Sci. Ser. 311, 509–511 (1876).

    Google Scholar 

42. O. C. Marsh, “Characters of theOdontornithes, with Notice of a New Allied Genus,” Am. J. Sci. Ser. 314, 85–87 (1877).

    Google Scholar 

43. O. C. Marsh, “Odontornithes, a Monograph on the Extinct Toothed Birds of North America,” Rep. US Geol. Expl. 40 Paral.7, 1–201 (1880).

    Google Scholar 

44. L. Martin, Z.-H. Zhou, L.-H. Hou, and A. Feduccia, “Confuciusornis sanctus Compared toArchaeopteryx lithographica,” Naturwissenschaft85, 286–289 (1998).

    Article  Google Scholar 

45. C. L. Nitzsch, “Über das Nägelglied der Flügelfingers, besonders des Daumens,” inOsteographische Beiträge zur Naturgeschichte der Vögel (Reclam, Leipzig, 1811), Vol. 5, pp. 89–97.

    Google Scholar 

46. S. L. Olson, “Anatomy and Systematics of the Confuciusornithidae (Theropoda: Aves) from the Late Mesozoic of Northeastern China: Review of the Book by L. M. Chiappe, G. Ji, and M. A. Norell,” Auk117(3), 836–839 (2000).

    Article  Google Scholar 

47. K. Padian and L. M. Chiappe, “The Origin and Early Evolution of Birds,” Biol. Rev.73(1), 1–42 (1998).

    Article  Google Scholar 

48. D. S. Peters, “Das Exponat des Monats: Ein nahezu vollständiges Skelett eines urtümlichen Vogels aus China,” Natur. Mus.126(9), 298–302 (1996).

    Google Scholar 

49. D. S. Peters and Q. Ji, “The Diapsid Temporal Construction of the Chinese Fossil Bird Confuciusornis,” Senck. Lethaea78(1/2), P. 155–158 (1998).

    Google Scholar 

50. D. S. Peters and Q. Ji, “MuβteConfuciusornis klettern?,” J. Ornithol.140(1), 41–50 (1999).

    Article  Google Scholar 

51. D. S. Peters and W. S. Peters, “Anpassung-Kernpunkt oder Misverständnis der Evolutionstheorie?,” inBausteine der Evolution: Symposium Übersee-Museum Brehem (Schwelm, Gelsenkirchen, 1997), pp. 73–82.

    Google Scholar 

52. W. P. Pycraft, “The Claws on the Wings of Birds,” Knowledge26, 221–224 (1903).

    Google Scholar 

53. R. J. Raikow, “Locomotor System,” inForm and Function in Birds (Academic, New York-London, 1985), Vol. 3, pp. 57–146.

    Google Scholar 

54. P. Senter, “Scapular Orientation in Theropods and Basal Birds,” Acta Palaeontol. Polon.51(2), 305–313 (2006).

    Google Scholar 

55. R. W. Shufeldt, “The Claws of the Index Digit of the Cathartidae,” Am. Natur.15, 906–908 (1881).

    Article  Google Scholar 

56. B. Stephan, “Vorkommen und Ausbildung der Fingerkrallen bei rezenten Vögeln,” J. Ornithol.133, 251–277 (1992).

    Article  Google Scholar 

57. A. C. Veit and I. L. Jones, “Function of Tail Streamers of Red-tailed Tropicbirds (Phaethon rubricauda) As Inferred from Patterns of Variation,” Auk120, 1033–1043 (2003).

    Article  Google Scholar 

58. G. Viohl, “Chinesische Vögel in Jura-Museum,” Archaeopteryx15, 97–102 (1997).

    Google Scholar 

59. P. Wellnhofer, “Remarks on the Digit and Pubis Problems ofArchaeopteryx,” inThe Beginning of Birds: Proceedings of the International Archaeopteryx Conference, Eichstätt (Bronner and Daentler, Eichstätt, 1985), pp. 113–122.

    Google Scholar 

60. A. Wetmore, “The Wing Claw in Swifts,” Condor22(6), 197–199 (1920).

    Article  Google Scholar 

61. F.-C. Zhang, L.-H. Hou, and L. Quyang, “Osteological Microstructure ofConfuciusornis: Preliminary Report,” Vertebr. Palasiat.36(2), 126–135 (1998).

    Google Scholar 

62. F.-C. Zhang and Z.-H. Zhou, “A Primitive Enantiornithine Bird and the Origin of Feathers,” Science290, 1955–1959 (2000).

    Article  Google Scholar 

63. F.-C. Zhang, Z.-H. Zhou, and L.-H. Hou, “Birds,” inThe Jehol Biota (Shanghai Sci. Tech. Publ., Shanghai, 2003), pp. 129–149.

    Google Scholar 

64. F.-C. Zhang, Z.-H. Zhou, and G. J. Dyke, “Feathers and ‘Feather-like’ Integumentary Structures in Liaoning Birds and Dinosaurs,” Geol. J.41(3–4), 395–404 (2006).

    Google Scholar 

65. Z.-H. Zhou, “Vertebrate Radiations of the Jehol Biota and Their Environmental Background,” Chin. Sci. Bull.49, 754–756 (2004).

    Google Scholar 

66. Z.-H. Zhou, “Adaptive Radiation of the Jehol Biota and Its Evolutionary Background,” inOriginations and Radiations—Evidences from the Chinese Fossil Record (Sci. Press, Beijing, 2006a), pp. 705–732, 943–945.

    Google Scholar 

67. Z.-H. Zhou, “Evolutionary Radiation of the Jehol Biota: Chronological and Ecological Perspectives,” Geol. J.41(3–4) 377–393 (2006b).

    Google Scholar 

68. Z.-H. Zhou, P. M. Barrett, and J. Hilton, “An Exceptionally Well Preserved Lower Cretaceous Ecosystem,” Nature421, 807–814 (2003).

    Article  Google Scholar 

69. Z.-H. Zhou and L.-H. Hou, “Confuciusornis and the Early Evolution of Birds,” Vertebr. Palasiat.36(2), 136–146 (1998).

    Google Scholar 

70. Z.-H. Zhou and F.-C. Zhang, “Origin of Feathers-Perspectives from Fossil Evidence,” Sci. Prog.84(2), 87–104 (2001).

    Article  Google Scholar 

71. Z.-H. Zhou and F.-C. Zhang, “Jeholornis Compared toArchaeopteryx, with a New Understanding of the Earliest Avian Evolution,” Naturwissenschaft90, 220–225 (2003).

    Article  Google Scholar 

72. Z.-H. Zhou and F.-C. Zhang, “Mesozoic Birds of China: An Introduction and Review,” Acta Zool. Sin.50(6), 913–920 (2004).

    Google Scholar 

73. Z.-H. Zhou and F.-C. Zhang, “Mesozoic Birds of China—a Synoptic Review,” Front. Biol. China2(1), 1–14 (2007).

    Article  Google Scholar 

74. A. V. Zinoviev, “Avian Hind Limb As an Organ of Bipedal Locomotion,” Candidate’s Dissertation in Biology (Mosk. Gos. Univ., Moscow, 1999).

    Google Scholar 

75. A. V. Zinoviev, “Key Locomotor Adaptation of Passerine Birds Based of Their Hindlimb Morphology,” inXII International Ornithological Conference on Ornithological Studies in Northern Eurasia (Sarat. Gos. Univ., Stavropol, 2006), pp. 221–222 [in Russian].

    Google Scholar 

76. A. V. Zinoviev, “Key Locomotor Adaptation of Passerine Birds Based of Their Hindlimb Morphology,” Byull. Mosk. Ob-va Ispyt. Prir. Otd. Biol.112(3), 20–26 (2007a).

    Google Scholar 

77. A. V. Zinoviev, “Some Details of Hand Skeleton Morphology of the Early Cretaceous BirdConfuciusornis sanctus (Confuciusornithidae) and Their Morphofunctional Interpretation,” Vestn. Tver. Gos. Univ., Ser. Biol. Ekol.22(50, 6), 94–100 (2007b).

    Google Scholar 

78. A. V. Zinoviev, “Comparative Anatomy, Structural Modifications, and Adaptive Evolution of Avian Apparatus of Bipedal Locomotion,” Doctoral Dissertation in Biology (Mosk. Gos. Univ., Moscow, 2007c).

    Google Scholar 

79. R. L. Zusi, “Structural Adaptations of the Head and Neck in the Black SkimmerRynchops nigra Linnaeus (Mass. Nuttall Ornithol. Club, Cambridge, 1962), Vol. 3.

    Google Scholar 

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