Large anseriform (Aves: Anatidae: Romainvilliinae?) fossils from the Late Eocene of Xinjiang, China

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	Large anseriform (Aves: Anatidae: Romainvilliinae?) fossils from the Late Eocene of Xinjiang, China
其他题名	新疆晚始新世的大型雁形目化石(鸟纲：鸭科：Romainvilliinae?)
	Stidham Thomas A; Ni Xijun
	2014
发表期刊	古脊椎动物学报
ISSN	1000-3118
卷号	52 期号:1 页码:98
摘要	Two new avian fossils from the Late Eocene of Xinjiang in western China appear to document the possible fi rst occurrence of the extinct anseriform group Romainvilliinae (Anatidae) within China and Asia. The tarsometatarsus has several anseriform and anatid characters, and a combination of traits only reported from the romainvilliines among waterfowl. The absence of a medial fl ange on the second trochlea, its large size similar to extant swans, and asymmetrical proximal end of the plantar side of the third trochlea indicate that this specimen represents a new unnamed taxon. The equally large femur specimen exhibits morphology consistent with the anatid, and possible romainvilliine, Cygnopterus affi nis from the Early Oligocene of Belgium. If these unnamed fossils represent Asian romainvilliines, they support a geographic range extension of the group, the occurrence of large body-sized romainvilliines in the Eocene, and an avifaunal biogeographic link between Europe and Asia during the Eocene prior to the end of the Turgai Strait as a dispersal barrier to most mammals.
语种	英语
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/10690
专题	中国科学院古脊椎动物与古人类研究所
作者单位	中国科学院古脊椎动物与古人类研究所
第一作者单位	中国科学院古脊椎动物与古人类研究所
推荐引用方式 GB/T 7714	Stidham Thomas A,Ni Xijun. Large anseriform (Aves: Anatidae: Romainvilliinae?) fossils from the Late Eocene of Xinjiang, China[J]. 古脊椎动物学报,2014,52(1):98.
APA	Stidham Thomas A,&Ni Xijun.(2014).Large anseriform (Aves: Anatidae: Romainvilliinae?) fossils from the Late Eocene of Xinjiang, China.古脊椎动物学报,52(1),98.
MLA	Stidham Thomas A,et al."Large anseriform (Aves: Anatidae: Romainvilliinae?) fossils from the Late Eocene of Xinjiang, China".古脊椎动物学报 52.1(2014):98.

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