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2003 | 48 | 2 |
Tytuł artykułu

Redescription of neoceratopsian dinosaur Archaeoceratops and early evolution of Neoceratopsia

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Języki publikacji
EN
Abstrakty
EN
Archaeoceratops oshimai Dong and Azuma, 1997 is a basal neoceratopsian from the late Early Cretaceous of Mazongshan area, Gansu Province, northwest China. Here we provide a detailed description on Archaeoceratops oshimai based on both the holotype, which consists of a well preserved, nearly complete skull, partial vertebral column, and partial pelvis, and the paratype, which consists of a partial vertebral column including a nearly complete tail, a partial pelvis, fragmentary hind limb bones, and a complete pes. Cladistic analysis shows that Archaeoceratopsis the sister group to all currently known Late Cretaceous Neoceratopsia, and Late Cretaceous Neoceratopsia diverged into two clades: the Asian Protoceratopsidae and the North American Ceratopsoidea, indicating a dual evolution for the two major groups of horned dinosaurs in two landmasses of Late Cretaceous. A suite of derived features characterizes Ceratopsoidea, such as a round−shaped external naris, a long caudolateral process of the rostral bone, and ventrally curved premaxillary ventral edge.
Wydawca
-
Rocznik
Tom
48
Numer
2
Opis fizyczny
p.261-272,fig.
Twórcy
autor
  • Chinese Academy of Geological Sciences, Beijing 100037, P.R.China
autor
Bibliografia
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  • Dodson, P. and Currie, P.J. 1990. Neoceratopsia. In: D.B. Weishampel, P. Dodson, and H. Osmólska (eds.), The Dinosauria, 593–618. University of California Press, Berkeley.
  • Dong, Z.−M. and Azuma, Y. 1997. On a primitive neoceratopsian from the Early Cretaceous of China. In: Z.−M. Dong (ed.), Sino−Japanese Silk Road Dinosaur Expedition, 68–89. China Ocean Press, Beijing.
  • Kurzanov, S.M. 1992. A giant protoceratopsid from the Upper Cretaceous of Mongolia [in Russian]. Paleontologičeskij žurnal 1992: 81–93.
  • Makovicky, P. 2001. A Montanoceratops cerorhynchus (Dinosauria: Ceratopsia) braincase from the Horseshoe Canyon Formation of Alberta. In: D.H. Tanke and K. Carpenter (eds.), Mesozoic Vertebrate Life, 243–262. Indiana University Press, Bloomington & Indianapolis.
  • Maryańska, T. 1990. Pachycephalosauria.In: D.B. Weishampel, P. Dodson, and H. Osmólska (eds.), The Dinosauria, 564–577. University of California Press, Berkeley.
  • Maryańska, T. and Osmólska, H. 1975. Protoceratopsidae (Dinosauria) of Asia. Palaeontologica Polonica 33: 133–182.
  • Nessov, L.A., Kazanyshkina, L.F. [Kazanyškina, L.F.], and Cherepanov, G.O. [Čerepanov, G.O.] 1989. Mesozoic ceratopsian dinosaurs and crocodilians of central Asia [in Russian]. In: T.N. Bogdanova and L.I. Hozackij (eds.), Teoretičeskie i prikladnye aspekty covremennoj paleontologii, 142–149. Nauka, Leningrad.
  • Sereno, P.C.1990. Psittacosauridae. In: D.B. Weishampel, P. Dodson, and H. Osmólska (eds.), The Dinosauria, 579–592. University of California Press, Berkeley.
  • Sereno, P.C. 1998. A rationale for phylogenetic definitions with application to the higher−level taxonomy of Dinosauria. Neues Jahrbuch für Geologie and Paläontologie Abhandlungen 210: 41–83.
  • Sereno, P.C. 2000. The fossil record, systematics and evolution of pachycephalosaurs and ceratopsians from Asia. In: M.J. Benton, M.A. Shishkin, D.M. Unwin, and E.N. Kurochkin (eds.), The Age of Dinosaurs in Russia and Mongolia, 480–516. Cambridge Press.
  • Sternberg, C.M. 1951. Complete skeleton of Leptoceratops gracilis Brown from the Upper Edmonton member of the Red Deer River, Alberta. Bulletin of Natural Museum of Canada 123: 225–255.
  • Tang, F., Luo, Z.−X., Zhou, Z.−H., You, H.−L., Georgi, J. A., Tang, Z.−L., and Wang. X.−Z. 2001. Biostratigraphy and paleoenvironment of the dinosaur−bearing sediments in Lower Cretaceous of Mazongshan area, Gansu Province, China. Cretaceous Research 22: 115–129.
  • Xu, X., Makovicky, P. J., Wang, X.−L., Norell, M. A., and You, H.−L. 2002. A ceratopsian dinosaur from China and the early evolution of Ceratopsia. Nature 416: 314–317.
  • You, H.−L. 2002. Mazongshan Dinosaur Assemblage from Late Early Cretaceous of Northwest China. 171 pp. Ph.D. dissertation. University of Pennsylvania.
  • Zhao, X.−J., Cheng, Z.−W., and Xu, X. 1999. The earliest ceratopsian from the Tuchengzi Formation of Liaoning, China. Journal of Vertebrate Paleontology 19 (4): 481–491.
Typ dokumentu
Bibliografia
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