Abstract
A new species of Confuciusornis, the oldest known beaked bird, is erected based on a nearly complete fossil from the Early Cretaceous Yixian Formation of western Liaoning, northeast China. C. feducciai is the largest and shows the highest ratio of the forelimb to the hindlimb among all known species of Confuciusornis. The skeletal qualitative autapomorphies, including a V-shaped furcula, a rectangular deltopectoral crest, the absence of an oval foramen at the proximal end of the humerus, the very slender alular digit, a relatively much longer ischium which is two-thirds the length of the pubis, and the morphology of sternum, strongly suggest the new specimen is a valid distinctive taxon. Detailed comparison with other described species provides sound evidence for diversification in the Early Cretaceous avian genus Confuciusornis. Anatomical features suggest an arboreal habit of the new bird.
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References
Berger AJ (1952) The comparative functional morphology of the pelvic appendage of three genera of Cuculidae. Am Midl Nat 47:513–605
Chang M, Chen P, Wang Y, Wang Y, Miao D (eds) (2003) The Jehol Biota. Shanghai Scientific and Technical Publishers, Shanghai
Chiappe LM, Norell MA, Clark JM (1996) Phylogenetic position of Mononykus from the Upper Cretaceous of the Gobi Desert. Mem Queensl Mus 39:557–582
Chiappe LM, Ji S, Ji Q, Norell MA (1999) Anatomy and systematics of the Confuciusornithidae (Theropoda: Aves) from the Late Mesozoic of northeastern China. Bull Am Mus Nat Hist 242:3–89
Chinsamy A, Chiappe LM, Dodson P (1995) Mesozoic avian bone microstructure: physiological implications. Paleobiology 21:561–574
Christiansen P (2006) Allometry in phylogeny and Archaeopteryx. J Vertebr Paleontol 26:480–486
Dalsätt J, Zhou Z, Zhang F, Ericson PGP (2006) Food remains in Confuciusornis sanctus suggest a fish diet. Naturwissenschaften 93:444–446
De Ricqlés AJ, Padian K, Horner JR, Lamm E-T, Myhrvold N (2003) Osteohistology of Confuciusornis sanctus (Theropoda: Aves). J Vertebr Paleontol 23:373–386
Dilger WC (1956) Adaptive modifications and ecological isolating mechanisms in the thrush genera Catharus and Hylocichla. Wilson Bull 68:171–199
Elzanowski A (2001) A new genus and species for the largest specimen of Archaeopteryx. Acta Palaeontol Pol 46:519–532
Elzanowski A, Manegold A, Peters DS (2005) Redescription of a skull of Confuciusornis sanctus. Archaeopteryx 23:51–55
Feduccia A (1993) Evidence from claw geometry indicating arboreal habits of Archaeopteryx. Science 259:790–793
Feduccia A, Martin LD, Tarsitano S (2007) Perspective in ornithology: Archaeopteryx 2007: quo vadis? Auk 124:373–380
Fisher HI (1944) The skulls of cathartid vultures. Condor 46:272–296
Fisher HI (1946) Adaptations and comparative anatomy of the locomotor apparatus of New World vultures. Am Midl Nat 35:545–727
Gauthier J (1986) Saurischian monophyly and the origin of birds. Mem Calif Acad Sci 8:1–55
Griffiths PJ (1993) The claws and digits of Archaeopteryx lithographica. Geobios 16:101–106
Hembree D (1999) Re-evaluation of the posture and claws of Confuciusornis. J Vertebr Paleontol 19:50A
Hou L (1997) Mesozoic birds of China. Feng-Huang Ku Bird Park of Taiwan, Nantou
Hou L, Zhou Z, Gu Y, Zhang H (1995a) Confuciusornis sanctus, a new Late Jurassic sauriurine bird from China. Chin Sci Bull 40:1545–1551
Hou L, Zhou Z, Martin LD, Feduccia A (1995b) A beaked bird from the Jurassic of China. Nature 377:616–618
Hou L, Martin LD, Zhou Z, Feduccia A, Zhang F (1999) A diapsid skull in a new species of the primitive bird Confuciusornis. Nature 399:679–682
Hou L, Zhou Z, Zhang F, Gu Y (2002) Mesozoic birds from western Liaoning in China. Liaoning Science and Technology Publishing House, Shenyang
Howard H (1929) The avifauna of Emeryville shellmound. Univ Calif Publ Zool 32:301–394
Howgate ME (1984) The teeth of Archaeopteryx and a reinterpretation of the Eichstätt specimen. Zool J Linn Soc 82:159–175
Ji S (2001) New advances in the study of the primitive bird Confuciusornis. Geol Sci Technol Inf 20:30–34 (in Chinese with English summary)
Martin LD, Zhou Z, Hou L, Feduccia A (1998) Confuciusornis sanctus compared to Archaeopteryx lithographica. Naturwissenschaften 85:286–289
Miles DB, Ricklefs RE (1984) The correlation between ecology and morphology in deciduous forest passerine birds. Ecology 65:1629–1640
Norberg UM (1979) Morphology of the wings, legs, and tail of three coniferous forest tits, the goldcrest, and the treecreeper in relation to locomotor pattern and feeding station selection. Philos Trans R Soc Lond B Biol Sci 287:131–165
Olson SL (2000) Review of “anatomy and systematics of the Confuciusornithidae (Theropoda: Aves) from the late Mesozoic of Northeastern China” by L. M. Chiappe, S. Ji, Q. Ji, and M. A. Norell. 1999. Bulletin of the American Museum of Natural History, vol. 242. Auk 117:836–839
Osterhaus MB (1962) Adaptive modifications in the leg structure of some North American warblers. Am Midl Nat 68:474–486
Partridge L (1976) Some aspects of the morphology of blue tits (Parus caeruleus) and coal tits (P. ater) in relation to their behavior. J Zool 179:121–133
Pettingill OS (1985) Ornithology in laboratory and field, 5th edn. Academic, London
Swisher CCIII, Wang X, Zhou Z, Wang Y, Jin F, Zhang J, Xu X, Zhang F, Wang Y (2002) Further support for a Cretaceous age for the feathered-dinosaur beds of Liaoning, China: New 40Ar/39Ar dating of the Yixian and Tuchengzi Formations. Chin Sci Bull 47:135–138
Wellnhofer P (1988) A new specimen of Archaeopteryx. Science 240:1790–1792
Yalden (1985) Climbing Archaeopteryx. Archaeopteryx 15:107–108
Zhang F, Hou L, Ouyang L (1998) Osteological microstructure of Confuciusornis: preliminary report. Vertebr PalAsiat 36:126–135
Zhou Z, Farlow JO (2001) Flight capability and habits of Confuciusornis. In: Gauthier J, Gall LF (eds) New perspectives on the origin and early evolution of birds: proceedings of the international symposium in honor of John H. Ostrom. Peabody Museum of Natural History. Yale University, New Haven, pp 237–254
Zhou Z, Hou L (1998) Confuciusornis and the early evolution of birds. Vertebr PalAsiat 36:136–146
Zhou Z, Zhang F (2002a) A long-tailed, seed-eating bird from the Early Cretaceous of China. Nature 418:405–409
Zhou Z, Zhang F (2002b) Largest bird from the Early Cretaceous and its implications for the earliest avian ecological diversification. Naturwissenschaften 89:34–38
Zhou Z, Zhang F (2003) Jeholornis compared to Archaeopteryx, with a new understanding of the earliest avian evolution. Naturwissenschaften 90:220–225
Zhou Z, Barrett PM, Hilton J (2003) An exceptionally preserved Lower Cretaceous ecosystem. Nature 421:807–814
Acknowledgments
We are greatly indebted to Nick Longrich, Shu-an Ji and Fucheng Zhang for their careful review of the manuscript and valuable suggestions; Larry D. Martin, Luis M. Chiappe and Zhonghe Zhou for help in the early stages of this work and examining the fossil. This work was supported by the National Natural Science Foundation of China (30670223), and Scientific Research Common Program of Beijing Municipal Commission of Education (KM200710028012).
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Communicated by F. Bairlein.
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Zhang, Z., Gao, C., Meng, Q. et al. Diversification in an Early Cretaceous avian genus: evidence from a new species of Confuciusornis from China. J Ornithol 150, 783–790 (2009). https://doi.org/10.1007/s10336-009-0399-x
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DOI: https://doi.org/10.1007/s10336-009-0399-x