A New Troodontid Dinosaur from the Lower Cretaceous Yixian Formation of Liaoning Province, China
文献类型：期刊论文
| 作者 | Shen Caizhi5; Lu Junchang5; Liu Sizhao4; Kundrat Martin3; Brusatte Stephen L2; Gao Hailong1 |
| 刊名 | Acta Geologica Sinica
 |
| 出版日期 | 2017-01-01 |
| 卷号 | 091期号:003页码:763 |
| ISSN号 | 1000-9515 |
| 英文摘要 | A new troodontid dinosaur, Daliansaurus liaoningensis gen. et sp. nov., is erected based on a nearly complete specimen from the Lower Cretaceous Yixian Formation of Beipiao City, Liaoning Province, China. This well preserved skeleton provides important new details of the anatomy for Liaoning troodontids, and gives new insight into their phylogenetic relationships and evolution. Daliansaurus is distinguished from other troodontids by an enlarged ungual on pedal digit IV, which is approximately the same size as the sickle-shaped second ungual, and is differentiated from other Liaoning troodontids by a number of characters of the skull, manus, pelvis, and hindlimb. A phylogenetic analysis recovers Daliansaurus within a subclade of Liaoning troodontids that also includes Sinovenator, Sinusonasus, and MeL We erect a name for this group--Sinovenatorinae--and argue that it reflects a localized radiation of small-bodied troodontids in the Early Cretaceous of eastern Asia, similar to previously recognized radiations of Liaoning dromaeosaurids and avialans. As more Liaoning theropods are discovered, it is becoming apparent that small, feathered paravians were particularly diverse during the Early Cretaceous, and future work is needed to clarify how this diversity arose, which species coexisted, and how these numerous species partitioned niches. |
| 语种 | 英语 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/178502]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Institute of Geomechanics, Chinese Academy of Geological Sciences 2.爱丁堡大学 3.布拉迪斯拉发夸美纽斯大学 4.中国科学院大连化学物理研究所 5.Institute of Geology, Chinese Academy of Geological Sciences |
| 推荐引用方式 GB/T 7714 | Shen Caizhi,Lu Junchang,Liu Sizhao,et al. A New Troodontid Dinosaur from the Lower Cretaceous Yixian Formation of Liaoning Province, China[J]. Acta Geologica Sinica,2017,091(003):763. |
| APA | Shen Caizhi,Lu Junchang,Liu Sizhao,Kundrat Martin,Brusatte Stephen L,&Gao Hailong.(2017).A New Troodontid Dinosaur from the Lower Cretaceous Yixian Formation of Liaoning Province, China.Acta Geologica Sinica,091(003),763. |
| MLA | Shen Caizhi,et al."A New Troodontid Dinosaur from the Lower Cretaceous Yixian Formation of Liaoning Province, China".Acta Geologica Sinica 091.003(2017):763. |
入库方式： OAI收割
来源：大连化学物理研究所
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