KMS Institute of Vertebrate Paleontology and Paleoanthropology
| A new specimen of Biseridens qilianicus indicates its phylogenetic position as the most basal anomodont | |
Liu, Jun1 ; Rubidge, Bruce2; Li, Jinling1; liujun@ivpp.ac.cn
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| 2010-01-22 | |
| 发表期刊 | PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
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| ISSN | 0962-8452 |
| 卷号 | 277期号:1679页码:285-292 |
| 文章类型 | Article |
| 摘要 | A new well-preserved basal therapsid skull from the Xidagou Formation, Middle Permian of China, is identified as Biseridens qilianicus. The following synapomorphies distinguish Biseridens as an anomodont and not an eotitanosuchian as previously described: short snout; dorsally elevated zygomatic arch and septomaxilla lacking elongated posterodorsal process between nasal and maxilla. The presence of a differentiated tooth row; denticles on vomer, palatine and pterygoid; contact between tabular and opisthotic; lateral process of transverse flange of pterygoid free of posterior ramus and absence of mandibular foramen exclude it from other anomodonts. Our cladistic analysis indicates Biseridens to be the most basal anomodont, highlights separate Laurasian and Gondwanan basal anomodont clades and suggests that dicynodonts had their origins in the Gondwanan clade. The co-occurrence of the most basal anomodont (Biseridens) together with the most basal therapsid (Raranimus), basal anteosaurid dinocephalians, bolosaurids and dissorophids suggests that the earliest therapsid faunas are from China. |
| 关键词 | Anomodontia Permian Biogeography Phylogeny Therapsida |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| URL | 查看原文 |
| 关键词[WOS] | LOWER BEAUFORT GROUP ; SOUTH-AFRICA ; BURNETIAMORPH THERAPSIDA ; BIARMOSUCHIA ; DICYNODONT ; EVOLUTION |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
| WOS类目 | Biology ; Ecology ; Evolutionary Biology |
| WOS记录号 | WOS:000272467300015 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/4617 |
| 专题 | 中科院古脊椎所（2000年以后） 古低等脊椎动物研究室 |
| 通讯作者 | liujun@ivpp.ac.cn |
| 作者单位 | 1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Evolutionary Systemat Vertebrates, Beijing 100044, Peoples R China 2.Univ Witwatersrand, Sch Geosci, Bernard Price Inst Palaeontol Res, WITS, ZA-2050 Johannesburg, South Africa |
| 推荐引用方式 GB/T 7714 | Liu, Jun,Rubidge, Bruce,Li, Jinling,et al. A new specimen of Biseridens qilianicus indicates its phylogenetic position as the most basal anomodont[J]. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2010,277(1679):285-292. |
| APA | Liu, Jun,Rubidge, Bruce,Li, Jinling,&liujun@ivpp.ac.cn.(2010).A new specimen of Biseridens qilianicus indicates its phylogenetic position as the most basal anomodont.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,277(1679),285-292. |
| MLA | Liu, Jun,et al."A new specimen of Biseridens qilianicus indicates its phylogenetic position as the most basal anomodont".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 277.1679(2010):285-292. |
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