Wang Xiaolin, Kellner Alexander W A, Jiang Shunxing, Cheng Xin
Key Laboratory of Evolutionary Systematics of Vertebrates, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China.
Naturwissenschaften. 2012 Apr;99(4):249-57. doi: 10.1007/s00114-012-0889-1. Epub 2012 Feb 22.
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.
尽管在过去几十年里翼龙的多样性大幅增加,特别是由于在中国辽宁西部的发现,但关于翼龙生物地理学的了解却非常少。在此,我们描述了一种来自九佛堂组的新翼龙,这极大地增加了我们对翼龙分布的认识,并丰富了这些会飞生物的颅骨解剖学多样性。猎鬼翼龙(Guidraco venator)属及种为新属新种,具有不寻常的向上的额嵴和大的吻部牙齿,其中一些在咬合时超出了头骨和下颌的边缘。这个新物种与巴西克拉托组的一个稀有分类群密切相关,这提出了一个有趣的古生物地理学问题,并支持了至少一些早白垩世翼龙类群,如梳颌翼龙科和无齿翼龙科,可能起源于亚洲的假说。新标本与粪化石的关联以及颅骨形态表明,猎鬼翼龙以鱼类为食。