Amphicticeps and Amphicynodon (Arctoidea, Carnivora) from Hsanda Gol Formation, central Mongolia and phylogeny of basal arctoids with comments on zoogeography

IVPP-IR > 中科院古脊椎所（2000年以后）

	Amphicticeps and Amphicynodon (Arctoidea, Carnivora) from Hsanda Gol Formation, central Mongolia and phylogeny of basal arctoids with comments on zoogeography
	Wang, XM ; McKenna, MC ; Dashzeveg, D ; Wang, XM (reprint author), Amer Museum Nat Hist, Div Paleontol, 900 Exposit Blvd, Los Angeles, CA 90007 USA.
	2005-07-25
发表期刊	AMERICAN MUSEUM NOVITATES
ISSN	0003-0082
期号	3483 页码:1-57
文章类型	Review
摘要	Amphicticeps shackelfordi and Amphicynodon teilhardi are two small carnivorans from the early Oligocene Hsanda Gol Formation of central Mongolia, and as basal arctoids (infraorder Arctoidea) in Asia, feature unique combinations of morphologies that offer insights into early diversification and zoogeography of the arctoids. Lack of adequate study of Amphicticeps and incomplete knowledge about Amphicynodon, however, prevented them from being figured in the discussions of arctoid relationships. New associated dental and cranial materials collected during recent expeditions in the 1990s substantially enrich our knowledge of the two genera and their stratigraphic positions, and serve as an impetus for a study of their phylogenetic relationships in the broad perspective of basal Arctoidea. Hsanda Gol arctoids are represented by six small- to medium-sized species: Amphicticeps shackelfordi Matthew and Granger 1924, A. dorog, n.sp., A. makhchinus, n.sp., Amphicynodon teilhardi Matthew and Granger 1924,? Cephalogale sp., and Pyctis inamatus Babbitt, 1999. The three species of Amphicticeps apparently form an endemic clade confined to central Asia, whose zoogeographic origin is currently unknown. Amphicynodon has a much higher diversity in Europe than in Asia, and phylogenetically the Asian A. teilhardi seems to be nested within the European congeneric species, indicating an eastward dispersal for this group, linking the European "Grande Coupure" and the Asian "Mongolian Reconstruction" events. To avoid excessive homoplasies in crown groups, we attempted a phylogenetic reconstruction based mostly on stem arctoids. Twenty genera of primitive arctoids occupying basal positions of nearly all major clades are selected for the analysis. The resulting tree, based on 39 characters, approximates the initial divergence of the arctoids. The traditionally dichotomous Arctoidea, formed by sister clades Ursida and Mustelida, is recovered in our analysis. Mustelida is also largely dichotomous with mustelid-like forms on one side and procyonid-like forms on the other. Despite its rather hypercarnivorous dentition, Amphicticeps is found on the Ursida side of the arctoids, although support for such a topology is relatively weak. Amphicynodon is a stein taxon of the Ursida and is a sister to an ursid-pinniped clade.; Amphicticeps shackelfordi and Amphicynodon teilhardi are two small carnivorans from the early Oligocene Hsanda Gol Formation of central Mongolia, and as basal arctoids (infraorder Arctoidea) in Asia, feature unique combinations of morphologies that offer insights into early diversification and zoogeography of the arctoids. Lack of adequate study of Amphicticeps and incomplete knowledge about Amphicynodon, however, prevented them from being figured in the discussions of arctoid relationships. New associated dental and cranial materials collected during recent expeditions in the 1990s substantially enrich our knowledge of the two genera and their stratigraphic positions, and serve as an impetus for a study of their phylogenetic relationships in the broad perspective of basal Arctoidea.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
URL	查看原文
关键词[WOS]	NORTH-AMERICA ; CHARACTER DISPLACEMENT ; MUSTELIDAE CARNIVORA ; RED PANDA ; MAMMALIA ; OLIGOCENE ; MIOCENE ; SYSTEMATICS ; EVOLUTION ; CHINA
收录类别	SCI
语种	英语
WOS研究方向	Biodiversity & Conservation ; Zoology
WOS类目	Biodiversity Conservation ; Zoology
WOS记录号	WOS:000230853200001
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/3535
专题	中科院古脊椎所（2000年以后）
通讯作者	Wang, XM (reprint author), Amer Museum Nat Hist, Div Paleontol, 900 Exposit Blvd, Los Angeles, CA 90007 USA.
作者单位	1.Amer Museum Nat Hist, Div Paleontol, Los Angeles, CA 90007 USA 2.Nat Hist Museum Los Angeles Cty, Dept Vertebrate Paleontol, Los Angeles, CA 90007 USA 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100864, Peoples R China 4.Mongolian Acad Sci, Inst Geol, Ulaanbaatar, Mongol Peo Rep
推荐引用方式 GB/T 7714	Wang, XM,McKenna, MC,Dashzeveg, D,et al. Amphicticeps and Amphicynodon (Arctoidea, Carnivora) from Hsanda Gol Formation, central Mongolia and phylogeny of basal arctoids with comments on zoogeography[J]. AMERICAN MUSEUM NOVITATES,2005(3483):1-57.
APA	Wang, XM,McKenna, MC,Dashzeveg, D,&Wang, XM .(2005).Amphicticeps and Amphicynodon (Arctoidea, Carnivora) from Hsanda Gol Formation, central Mongolia and phylogeny of basal arctoids with comments on zoogeography.AMERICAN MUSEUM NOVITATES(3483),1-57.
MLA	Wang, XM,et al."Amphicticeps and Amphicynodon (Arctoidea, Carnivora) from Hsanda Gol Formation, central Mongolia and phylogeny of basal arctoids with comments on zoogeography".AMERICAN MUSEUM NOVITATES .3483(2005):1-57.