New fossil osteoglossomorph from Ningxia, China

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	New fossil osteoglossomorph from Ningxia, China
	Zhang, JY; Zhang, JY (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, POB 643, Beijing, Peoples R China.
刊名	JOURNAL OF VERTEBRATE PALEONTOLOGY
	2004-09-10
卷号	24 期号:3 页码:515-524
ISSN号	0272-4634
文献子类	Article
英文摘要	The fish described here is from the Madongshan Formation, Liupanshan group (Early Cretaceous), Tongxin County, Ningxia Autonomous Region, China. It is assigned to Osteoglossomorpha because it has the following synapomorphies of the superorder: a full neural spine on the first preural centrum, a primary bite between parasphenoid and basihyal. and absence of a supraorbital. This fish differs from other osteoglossomorphs in having a very short premaxilla with only three teeth, of which one is exceptionally large, and an unusual caudal skeletal in which hypural 1 is fused to the first ural centrum and hypural 2 remains autogenous. A new name is proposed, Xixiaichthys tongxinensis gen. et sp. nov., based on the unique characters and a combination of other characters. The results of the phylogenetic analysis show that Xixiaichthys is the sister group of the Osteoglossiformes ([[Notopterus + Osteoglossum] + [Huashia + Kuntulunia]]). Therefore, the new genus is referred to Osteoglossiformes.; The fish described here is from the Madongshan Formation, Liupanshan group (Early Cretaceous), Tongxin County, Ningxia Autonomous Region, China. It is assigned to Osteoglossomorpha because it has the following synapomorphies of the superorder: a full neural spine on the first preural centrum, a primary bite between parasphenoid and basihyal. and absence of a supraorbital. This fish differs from other osteoglossomorphs in having a very short premaxilla with only three teeth, of which one is exceptionally large, and an unusual caudal skeletal in which hypural 1 is fused to the first ural centrum and hypural 2 remains autogenous. A new name is proposed, Xixiaichthys tongxinensis gen. et sp. nov., based on the unique characters and a combination of other characters. The results of the phylogenetic analysis show that Xixiaichthys is the sister group of the Osteoglossiformes ([[Notopterus + Osteoglossum] + [Huashia + Kuntulunia]]). Therefore, the new genus is referred to Osteoglossiformes.
WOS关键词	PHYLOGENETIC-RELATIONSHIPS ; CAUDAL SKELETON ; TELEOSTEI ; FISHES ; HIODON
WOS研究方向	Paleontology
语种	英语
WOS记录号	WOS:000223796000001
公开日期	2013-11-27
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/3632]
专题	古脊椎动物与古人类研究所_图书馆1
通讯作者	Zhang, JY (reprint author), Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, POB 643, Beijing, Peoples R China.
作者单位	Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhang, JY,Zhang, JY . New fossil osteoglossomorph from Ningxia, China[J]. JOURNAL OF VERTEBRATE PALEONTOLOGY,2004,24(3):515-524.
APA	Zhang, JY,&Zhang, JY .(2004).New fossil osteoglossomorph from Ningxia, China.JOURNAL OF VERTEBRATE PALEONTOLOGY,24(3),515-524.
MLA	Zhang, JY,et al."New fossil osteoglossomorph from Ningxia, China".JOURNAL OF VERTEBRATE PALEONTOLOGY 24.3(2004):515-524.