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The furcula in Suchomimus tenerensis and Tyrannosaurus rex (Dinosauria: Theropoda: Tetanurae)

  • Christine Lipkin (a1) (a2), Paul C. Sereno (a1) and John R. Horner (a3)

Ossified clavicles, either as paired elements or as a median furcula, have been recorded in all major clades of dinosaurs, including ornithischians, sauropodomorphs, and theropods (Bryant and Russell, 1993). Nearly all but the most basal theropods, Eoraptor lunensis and Herrerasaurus ischigualastensis, have an ossified furcula including coelophysids (Downs, 2000; Tykoski et al., 2002; Carrano et al., 2005), allosauroids (Chure and Madsen, 1996), tyrannosaurids (Makovicky and Currie, 1998; Larson and Donnan, 2002; Brochu, 2003; Lipkin and Sereno, 2004; Larson and Rigby, 2005), therizinosaurids (Xu et al., 1999a; Zhang et al., 2001), oviraptorids (Barsbold, 1983; Clark et al., 1999, 2001; Hwang et al., 2002; Osmólska et al., 2004), troodontids (Xu and Norell, 2004), and dromaeosaurids (Norell et al., 1997; Norell and Makovicky, 1999; Xu et al., 1999b; Burnham et al., 2000; Hwang et al., 2002). No ossification of any element beyond the coracoid has been found in the pectoral girdle of the well-preserved primitive theropods, Eoraptor lunensis and Herrerasaurus ischigualastensis.

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Barsbold, R. 1983. Carnivorous dinosaurs from the Cretaceous of Mongolia. Transactions of the Joint Soviet-Mongolian Paleontological Expedition, 19:1120. (In Russian)
Brochu, C. A. 2003. Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull. Journal of Vertebrate Paleontology, 22:1138.
Bryant, H. N. and Russell, A. P. 1993. The occurrence of clavicles within Dinosauria: implications for the homology of the avian furcula and the utility of negative evidence. Journal of Vertebrate Paleontology, 13:171184.
Burnham, D. A., Derstler, K. L., Currie, P. J., Bakker, R. T., Zhou, Z. H., and Ostrom, J. H. 2000. Remarkable new birdlike dinosaur (Theropoda: Maniraptora) from the Upper Cretaceous of Montana. University of Kansas Paleontological Contributions, 13:114.
Carrano, M. T., Hutchinson, J. R., and Sampson, S. D. 2005. New information of Segisaurus halli, a small theropod dinosaur from the Early Jurassic of Arizona. Journal of Vertebrate Paleontology, 25:835849.
Chure, D. J., and Madsen, J. H. Jr. 1996. On the presence of furculae in some non-maniraptoran theropods. Journal of Vertebrate Paleontology, 16:573577.
Clark, J. M., Norell, M. A., and Chiappe, L. M. 1999. An oviraptorid skeleton from the Late Cretaceous of Ukhaa Tolgod, Mongolia, preserved in an avian-like brooding position over an oviraptorid nest. American Museum Novitates, Number 3265, 35 p.
Clark, J. M., Norell, M. A., and Barsbold, R. 2001. Two new oviraptorids (Theropoda: Oviraptorosauria), Upper Cretaceous Djadokhta Formation, Ukhaa Tolgod, Mongolia. Journal of Vertebrate Paleontology, 21:209213.
Derstler, K. L. 2005. Taphonomy of the Tyrannosaurus rex “Peck's rex™” from the Hell Creek Formation of Montana. Abstracts from the “100 Years of Tyrannosaurus rex“ Symposium, Hill City, SD, 19 p.
Downs, A. 2000. Coelophysis bauri and Syntarsus rhodesiensis compared, with comments on the preparation and preservation of fossils form the Ghost Ranch Coelophysis Quarry; p. 3337. In Lucas, S. G. and Heckert, A. B. (eds.), Dinosaurs of New Mexico. New Mexico Museum of Natural History and Science Bulletin 17, Albuquerque.
Hwang, S. H., Norell, M. A., and Gao, K. 2002. New Specimens of Microraptor zhaoianus (Theropoda: Dromaeosauridae) from Northeastern China. American Museum Novitates, Number 3282, 44 p.
Horner, J. R. and Padian, K. 2004. Age and growth dynamics of Tyrannosaurus rex. Proceeding of the Royal Society of London, Series B, 271:18751880.
Hui, C. A. 2002. Avian furcula morphology may indicate relationships of flight requirements among birds. Journal of Morphology, 251:284293.
Larson, P. L. and Donnan, K. 2002. Rex Appeal: The Amazing Story of Sue, the Dinosaur that Changed Science, the Law, and My Life. Invisible Cities Press, Montpelier, 389 pp.
Larson, P. L. and Rigby, J. K. Jr. 2005. Furcula of Tyrannosaurus rex, p. 247253. In Carpenter, K. (ed.), The Carnivorous Dinosaurs. Indiana University Press, Bloomington.
Lipkin, C. and Sereno, P. C. 2004. The furcula in Tyrannosaurus rex. Journal of Vertebrate Paleontology, Abstracts of Papers (Supplement to No. 3), 24:83A.
Makovicky, P. and Currie, P. J. 1998. The presence of a furcula in tyrannosaurid theropods, and its phylogenetic and functional implications. Journal of Vertebrate Paleontology, 18:143149
Norell, M. A. and Makovicky, P. 1999. Important features of the dromaeosaurid skeleton II: information from newly collected specimens of Velociraptor mongoliensis. American Museum Novitates, Number 3282, 44 p.
Norell, M. A., Makovicky, P., and Clark, J. M. 1997. A Velociraptor wishbone. Nature, 389:447.
Osmólska, H., Currie, P. J., and Barsbold, R. 2004. Oviraptorosauria, p. 165183. In Weisampel, D. B., Dodson, P., and Osmolska, H. (eds.), The Dinosauria. University of California Press, Berkeley.
Schweitzer, M. H., Wittmeyer, J. L., and Horner, J. R. 2005. Genderspecific reproductive tissue in Ratites and Tyrannosaurus rex. Science, 308:14571460.
Sereno, P. C., Beck, A. L., Dutheil, D. B., Gado, B., Larsson, H. C. E., Lyon, G. H., Marcot, J. D., Rauhut, O. W. M., Sadleir, R. W., Sidor, C. A., Varricchio, D. D., Wilson, G. P., and Wilson, J. A. 1998. A long-snouted predatory dinosaur from Africa and the evolution of spinosaurids. Science, 282:12981302.
Tykoski, R. S., Forster, C. A., Rowe, T., Sampson, S. D., and Munyikwa, D. 2002. A furcula in the coelophysid theropod Syntarsus. Journal of Vertebrate Paleontology, 22:728733.
Xu, X. and Norell, M. A. 2004. A new troodontid dinosaur from China with avian-like sleeping posture. Nature, 431:838841.
Xu, X., Tang, Z.-L., and Wang, X.-L. 1999a. A therizinosauroid dinosaur with integumentary structures from China. Nature, 399:350354.
Xu, X., Wang, X.-L., and Wu, X.-C. 1999b. A dromaeosaurid dinosaur with a filamentous integument from the Yixian Formation of China. Nature, 401:262266.
Zhang, X.-H., Xu, X., Zhao, X.-J., Sereno, P. C., Kuang, X.-W., and Tan, L. 2001. A long-necked therizinosauroid dinosaur from the Upper Cretaceous Iren Dabasu Formation of Nei Mongol, People's Republic of China. Vertebrata Pal Asiatica, 39:282290.
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Journal of Paleontology
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