The earliest ceratopsian from the Tuchengzi Formation of Liaoning, China

LITERATURE CITED

• Brown , B. 1914 . Leptoceratops, a new genus of horned dinosaurs from the Edmonton Cretaceous of Alberta . Bulletin of American Museum Natural History , 33 : 567 – 580 .
   Google Scholar
• Brown , B. and Shlaikjer , E. M. 1940 . The structure and relationships of Protoceratops . Annals of New York Academy Sciences , 40 : 133 – 266 .
   Google Scholar
• Chao , S. 1962 . New species of Psittacosaurus from Laiyang, Shantung . Vertebrata PalAsiatica , 6 : 349 – 360 . [Chinese]
   Google Scholar
• Cooper , M. R. 1985 . A revision of the ornithischian dinosaur Kangnasaurus coetzeei Haughton, with a classification of the Ornithischia . Annals of the South African Museum , 95 ( 3 ) : 281 – 317 .
   Google Scholar
• Coombs , W. P. Jr. 1982 . Juvenile specimens of the ornithischian dinosaur Psittacosaurus . Palaeontology , 25 : 89 – 107 .
   Web of Science ®Google Scholar
• Crompton , A. W. and Charig , A. J. 1962 . A new ornithischian from the Upper Triassic of South Africa . Nature , 196 : 1074 – 1077 .
   Web of Science ®Google Scholar
• Dodson , P. 1990 . “ Ceratopsian ” . In The Dinosauria Edited by: Weishampel , D. B. , Dodson , P. and Osmólska , H. 578 Berkeley : University of California Press .
   Google Scholar
• Dodson , P. and Currie , P. 1990 . “ Neoceratopsian; ” . In The Dinosauria Edited by: Weishampel , D. B. , Dodson , P. and Osmólska , H. 593 – 618 . Berkeley : University of California Press .
   Google Scholar
• Dong , G.-Y. 1985 . “ Jibei-Liaoxi area; ” . In The Jurassic in China Edited by: Wang , S. E. 116 – 125 . Beijing. [Chinese] : Geological Publishing House .
   Google Scholar
• Dong , Z.-M. 1992 . Dinosaurian Faunas of China 192 Berlin : China Ocean Press (Beijing) .
   Google Scholar
• Dong , Z.-M. and Azuma , Y. 1997 . “ On a primitive neoceratopsian from the Early Cretaceous of China; ” . In The Sino-Japanese Silk Road Dinosaur Expedition Edited by: Dong , Z.-M. 68 – 89 . Beijing : China Ocean Press .
   Google Scholar
• Gauthier , J. 1986 . Saurischian monophyly and the origin of birds. California Academy of Sciences . Memoirs , 8 : 1 – 55 .
   Google Scholar
• Kurzanov . 1992 . Gigantic protoceratopsid from the Upper Cretaceous of Mongolia . Paleontological Journal , 26 : 103 – 116 . [Russian]
   Google Scholar
• Lambe , L. M. 1904 . On the squamoso-parietal crest of two species of horned dinosaurs from the Cretaceous of Alberta . Ottawa Naturalist , 18 : 81 – 84 .
   Google Scholar
• Maryanska , T. and Osmólska. , H. 1975 . Protoceratopsidae (Dinosauria) of Asia . Palaeontological Polonica , 30 : 45 – 102 .
   Google Scholar
• Maryanska , T. and Osmólska. , H. 1985 . On ornithischian phylogeny . Acta Palaeontological Polonica , 30 : 137 – 150 .
   Google Scholar
• Norman , D. B. 1984a . “ A systematic appraisal of the reptile order Ornithischia; ” . In 3d Symposium on Mesozoic Territial Ecosystem Short Papers Edited by: Reif , W.-E. and Westphal , F. 157 – 162 . Tübingen : Attempto Verlag .
   Google Scholar
• Norman , D. B. 1984b . “ On the cranial morphology and evolution of ornithopod dinosaurs; ” . In The Structure, Development and Evolution of Reptiles Edited by: Ferguson , M. W. J. 521 – 547 . London : Academic Press .
   Google Scholar
• Reng , D. , Wang , L.-W , Guo , Z.-G. and Ji , S.-A. 1995 . Fauna and Stratigraphy of Jurassic-Cretaceous in Beijing and the Adjacent areas 222 Beijing : DiZheng Press . [Chinese with English summary]
   Google Scholar
• Santa Luca , A. P. 1980 . The postcranial skeleton of H'eterodontosaurus tucki from the Stormberg of South Africa . Annals of Southern African Museum , 79 : 159 – 211 .
   Google Scholar
• Sereno , P. C. 1986 . Phylogeny of the bird-hipped dinosaurs (order Ornithischia) . National Geographic Research , 2 : 234 – 256 .
   Google Scholar
• Sereno , P. C. 1987 . The ornithischian dinosaur Psittacosaurus from the Lower Cretaceous of Asia and the relationships of the Ceratopsia 554 Ph.D. dissertation, Columbia University, New York
   Google Scholar
• Sereno , P. C. 1990 . “ Psittacosauridae; ” . In The Dinosauria Edited by: Weishampel , D. B. , Dodson , P. and Osmólska , H. 579 – 592 . Berkeley : University of California Press .
   Google Scholar
• Sereno , P. C. 1997 . The origin and evolution of dinosaurs . Annual Review of Earth and Planetary Sciences , 25 : 435 – 489 .
   Web of Science ®Google Scholar
• Sereno , P. C. , Chao , S. , Cheng , Z. and Rao , C. 1988 . Psittacosaurus meileyingensis (Ornithischia: Ceratopsia), a new psittacosaur from the Lower Cretaceous of northeastern China . Journal of Vertebrate Paleontology , 8 : 366 – 377 .
   Google Scholar
• Sereno , P. C. and Novas , F. E. 1993 . The skull and neck of the basal theropod Herrerasaurus Ischigualastensis . Journal of Vertebrate Paleontology , 13 ( 4 ) : 451 – 476 .
   Google Scholar
• Swofford , D. L. 1993 . PAUP: Phylogenetic Analysis Using Parsimony, Version 3.1.1 Champaign, Illinois : Computer program distributed by the Illinois Natural History Survey .
   Google Scholar
• Wang , S. E. 1998 . Correlation of the Continental Jurassic in the north of China to the Paralic Jurassic in Northwest Scotland, United Kingdom . Acta Geological Sinica , 72 ( 1 ) : 11 – 21 . [Chinese with English summary]
   Google Scholar
• Wang , W. L. , Zheng , S.-L. , Zhang , L.-J. , Pu , R.-G. , Zhang , W. , Wu , H.-Z. , Ju , R.-H. , Dong , G.-Y. and Yuan , H. 1989 . Mesozoic Stratigraphy and Paleontology of Western Liaoning 168 Beijing : Geological Publishing House . [Chinese with English summary]
   Google Scholar
• Weishampel , D. B. 1990 . “ Ornithopod; ” . In The Dinosauria Edited by: Weishampel , D. B. , Dodson , P. and Osmólska , H. 484 – 485 . Berkeley : University of California Press .
   Google Scholar
• Weishampel , D. B. and Witmer , L. M. 1990a . “ Lesothosaurus, Pisanosaurus, and Technosaurus; ” . In The Dinosauria Edited by: Weishampel , D. B. , Dodson , P. and Osmólska , H. 416 – 425 . Berkeley : University of California Press .
   Google Scholar
• Weishampel , D. B. and Witmer , L. M. 1990b . “ Heterodontosauridae; ” . In The Dinosauria Edited by: Weishampel , D. B. , Dodson , P. and Osmólska , H. 486 – 497 . Berkeley : University of California Press .
   Google Scholar
• Xu , X. 1997 . “ A new psittacosaur (Psittacosaurus mazongshanensis sp. nov.) from Mazongshan area, Gansu Province, China; ” . In Sino-Japanese Silk Road Dinosaur Expedition Edited by: Dong , Z.-M. 48 – 67 . Beijing : China Ocean Press .
   Google Scholar
• Xu , X. and Wang , X-L. 1998 . New psittacosaur (Ornithischia, Ceratopsia) occurrence from the Yixian Formation of Liaoning, China and its stratigraphical significance . Vertebrata PalAsiatica , 36 ( 2 ) : 81 – 101 . [Chinese with English summary]
   Google Scholar
• Young , C. 1958 . The dinosaurian remains of Laiyang, Shantung. Palaeontologia Sinica . New Series C , 16 : 1 – 138 . [Chinese with English summary]
   Google Scholar
• Zhao , X. J. 1983 . Phylogeny and evolutionary stages of Dinosauria. Acta. Palaeontologica . Polonica , 28 ( 1–2 ) : 295 – 306 .
   Google Scholar
• Zhao , X. J. 1985 . “ Reptile; ” . In The Jurassic in China Edited by: Wang , S.-E. 286 – 291 . Beijing. [Chinese] : Geological Publishing House .
   Google Scholar