KMS Institute of Vertebrate Paleontology and Paleoanthropology
| The taxonomic status of the Late Cretaceous dromaeosaurid Linheraptor exquisitus and its implications for dromaeosaurid systematics | |
Xu Xing1 ; Pittman Michael2; Sullivan Corwin1; Choiniere Jonah N3; Tan Qingwei4; Clark James M5; Norell Mark A6; Wang Shuo1
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| 2015 | |
| 发表期刊 | 古脊椎动物学报
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| ISSN | 1000-3118 |
| 卷号 | 53期号:1页码:29 |
| 摘要 | The dromaeosaurid Linheraptor exquisitus was named in 2010 based on a nearly complete skeleton recovered from the Upper Cretaceous Wulansuhai Formation at the Gate Locality, in Bayan Mandahu, western Nei Mongol, China. However, three recent studies regarded L. exquisitus as a subjective junior synonym of Tsaagan mangas, a dromaeosaurid from the Upper Cretaceous Djadokhta Formation of the Ukhaa Tolgod locality, Mongolia. Here we refute this synonymy based on 61 morphological features that distinguish L. exquisitus from T. mangas. Many of these features are based on new observations from previously unprepared areas of the L. exquisitus holotype, most notably from the left lateral side of the skull. These observations underscore and strengthen our original taxonomic separation of L. exquisitus and T. mangas. Evidence from L. exquisitus points to an unexpectedly complex distribution of derived osteological features amongst dromaeosaurids, because this species possesses features that were previously identified as autapomorphies of T. mangas or indeed of various other dromaeosaurids. Our review demonstrates that the proposed synonymy between L. exquisitus and T. mangas ignores many subtle morphological variations. Increased taxonomic sampling breaks down seemingly obvious diagnostic differences into more subtle morphological variations, which are potentially of great importance for fine-scale phylogenetic analyses. Rigorous quantitative methods using continuous data represent a promising way to exploit this type of information in future systematic studies. |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/11214 |
| 专题 | 中科院古脊椎所（2000年以后） 中国科学院古脊椎动物与古人类研究所 |
| 作者单位 | 1.中国科学院古脊椎动物与古人类研究所 2.香港大学 3.金山大学 4.Long Hao Institute of Geology and Paleontology 5.乔治华盛顿大学 6.Division of Paleontology, American Museum of Natural History |
| 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 | Xu Xing,Pittman Michael,Sullivan Corwin,et al. The taxonomic status of the Late Cretaceous dromaeosaurid Linheraptor exquisitus and its implications for dromaeosaurid systematics[J]. 古脊椎动物学报,2015,53(1):29. |
| APA | Xu Xing.,Pittman Michael.,Sullivan Corwin.,Choiniere Jonah N.,Tan Qingwei.,...&Wang Shuo.(2015).The taxonomic status of the Late Cretaceous dromaeosaurid Linheraptor exquisitus and its implications for dromaeosaurid systematics.古脊椎动物学报,53(1),29. |
| MLA | Xu Xing,et al."The taxonomic status of the Late Cretaceous dromaeosaurid Linheraptor exquisitus and its implications for dromaeosaurid systematics".古脊椎动物学报 53.1(2015):29. |
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