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DOI | 10.1038/s41598-019-52021-y |
A new alvarezsaurid dinosaur from the Nemegt Formation of Mongolia | |
Lee, Sungjin1; Park, Jin-Young1; Lee, Yuong-Nam1; Kim, Su-Hwan1; Lu, Junchang2; Barsbold, Rinchen3; Tsogtbaatar, Khishigjav3 | |
通讯作者 | Lee, Yuong-Nam |
来源期刊 | SCIENTIFIC REPORTS
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ISSN | 2045-2322 |
出版年 | 2019 |
卷号 | 9 |
英文摘要 | Alvarezsaurid diversity has been markedly increased by recent discoveries from China. However, the number of alvarezsaurid specimens in the Nemegt Formation of Mongolia remained low since the initial report on Mononykus olecranus in 1993. Here we report three new alvarezsaurid specimens from this formation, which were associated with each other and also with multiple oviraptorid skeletons in a small multi-species assemblage. Two of the alvarezsaurid specimens represent a new taxon, Nemegtonykus citus gen. et sp. nov., which is mainly distinguished from other alvarezsaurids by the first sacral vertebra with a subtrapezoidal lamina, the second sacral centrum which is directly co-ossified with ilium, the posterodorsally oriented postacetabular process of ilium, and partial co-ossification between metatarsals II and IV. The other specimen is very similar to M. olecranus in morphology and referred to cf. Mononykus sp. Our phylogenetic analysis recovered Nemegtonykus as a parvicursorine forming a polytomy with several other taxa from the Gobi Desert. The presence of three alvarezsaurid individuals in the same locality indicates that the abundance of alvarezsaurids have been greatly underestimated in the Nemegt dinosaur faunas. |
类型 | Article |
语种 | 英语 |
国家 | South Korea ; Peoples R China ; Mongolia |
开放获取类型 | gold, Green Published |
收录类别 | SCI-E |
WOS记录号 | WOS:000493048400046 |
WOS关键词 | THEROPODA ; MONONYKUS ; EVOLUTION ; BEARING ; BIRD |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
EI主题词 | 2019-10-29 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/310379 |
作者单位 | 1.Seoul Natl Univ, Sch Earth & Environm Sci, Seoul 08826, South Korea; 2.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China; 3.Mongolian Acad Sci, Inst Paleontol & Geol, Ulaanbaatar 15160, Mongolia |
推荐引用方式 GB/T 7714 | Lee, Sungjin,Park, Jin-Young,Lee, Yuong-Nam,et al. A new alvarezsaurid dinosaur from the Nemegt Formation of Mongolia[J],2019,9. |
APA | Lee, Sungjin.,Park, Jin-Young.,Lee, Yuong-Nam.,Kim, Su-Hwan.,Lu, Junchang.,...&Tsogtbaatar, Khishigjav.(2019).A new alvarezsaurid dinosaur from the Nemegt Formation of Mongolia.SCIENTIFIC REPORTS,9. |
MLA | Lee, Sungjin,et al."A new alvarezsaurid dinosaur from the Nemegt Formation of Mongolia".SCIENTIFIC REPORTS 9(2019). |
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