New toothed flying reptile from Asia: close similarities between early Cretaceous pterosaur faunas from China and Brazil

被引:62
|
作者
Wang, Xiaolin [2 ]
Kellner, Alexander W. A. [1 ]
Jiang, Shunxing [2 ,3 ]
Cheng, Xin [2 ,3 ]
机构
[1] Univ Fed Rio de Janeiro UFRJ, Lab Systemat & Taphon Fossil Vertebrates, Dept Geol & Paleontol, Museu Nacl, BR-20940040 Rio De Janeiro, Brazil
[2] Chinese Acad Sci, Key Lab Evolutionary Systemat Vertebrates, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
[3] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
关键词
Pterosauria; Guidraco; Jiufotang Formation; Early Cretaceous; China; LONG-TAILED PTEROSAUR; PTERODACTYLOID PTEROSAUR; AZHDARCHOID PTEROSAUR; JIUFOTANG FORMATION; NORTHEASTERN CHINA; LIAONING PROVINCE; YIXIAN FORMATION; WESTERN; AGE; TAPEJARIDAE;
D O I
10.1007/s00114-012-0889-1
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Despite the great increase in pterosaur diversity in the last decades, particularly due to discoveries made in western Liaoning (China), very little is known regarding pterosaur biogeography. Here, we present the description of a new pterosaur from the Jiufotang Formation that adds significantly to our knowledge of pterosaur distribution and enhances the diversity of cranial anatomy found in those volant creatures. Guidraco venator gen. et sp. nov. has an unusual upward-directed frontal crest and large rostral teeth, some of which surpass the margins of the skull and lower jaw when occluded. The new species is closely related to a rare taxon from the Brazilian Crato Formation, posing an interesting paleobiogeographic problem and supporting the hypothesis that at least some early Cretaceous pterosaur clades, such as the Tapejaridae and the Anhangueridae, might have originated in Asia. The association of the new specimen with coprolites and the cranial morphology suggest that G. venator preyed on fish.
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页码:249 / 257
页数:9
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