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NEW PTERODACTYLOID PTEROSAUR FROM THE LOWER CRETACEOUS YIXIAN FORMATION OF WESTERN LIAONING

机译:辽西下白垩统义县组的新翼龙类翼龙

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摘要

A possible lonchodectid pterosaur from the Lower Cretaceous Jingangshan bed of the Yixian Formation, western Liaoning, is described herein. Based on a partial skull and postcranial skeleton, a new genus and species, Yixianopterus jingangshanensis, are erected. The new taxon is characterized by relatively short, subequal-sized, well-spaced rostral teeth; the lengths of wing phalanx 1 and wing phalanx 2 nearly equal; the length of wing phalanx 1 is twice the length of that of metacarpal IV; and the length ratio of metacarpal IV to ulna is 0.64. Yixianopterus represents the first lonchodectid pterosaur outside of England.
机译:本文描述了一种来自辽西西部义县组下白垩统金刚山床的可能的龙骨翼龙。在部分颅骨和颅后骨骼的基础上,建立了一种新的属和种,即金刚山金线虫。新的分类单元的特征是相对较短,大小不等的,间隔较广的延性齿。机翼指骨1和机翼指骨2的长度几乎相等;翼指骨1的长度是掌骨IV的长度的两倍;掌骨IV与尺骨的长度比为0.64。 Yixianopterus代表英格兰以外的第一个长脊龙类翼龙。

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