干旱区生态环境知识资源中心(Arid): A re-appraisal of Parvicursor remotus from the Late Cretaceous of Mongolia: implications for the phylogeny and taxonomy of alvarezsaurid theropod dinosaurs

Arid

DOI	10.1080/14772019.2021.2013965
	A re-appraisal of Parvicursor remotus from the Late Cretaceous of Mongolia: implications for the phylogeny and taxonomy of alvarezsaurid theropod dinosaurs
	Averianov, Alexander O.; Lopatin, Alexey, V
通讯作者	Averianov, AO (corresponding author)，Russian Acad Sci, Zool Inst, Univ Skaya Emb 1, St Petersburg 199034, Russia.
来源期刊	JOURNAL OF SYSTEMATIC PALAEONTOLOGY
ISSN	1477-2019
EISSN	1478-0941
出版年	2021
卷号	19 期号:16
英文摘要	Parvicursor remotus Karhu & Rautian, 1996, based on a fragmentary skeleton from the Campanian Barungoyot Formation at Khulsan, in the Gobi Desert of Mongolia, is re-described in detail. Contrary to the original description, we find no evidence that the last dorsal vertebra is opisthocoelous. A biconvex last dorsal vertebra could be present in Parvicursor as in other parvicursorines. The transversely compressed sacral centrum with a sharp ventral keel is the last sacral, not the first sacral as originally alleged. The pelvic bones are not fused at the acetabulum. The holotype of P. remotus, the smallest known alvarezsaurid specimen, is a juvenile individual far from skeletal maturity. New morphological details of Parvicursor that are revealed include a ventral ridge on the posterior dorsal vertebrae; a horizontal supraacetabular crest of the ilium whose anterior end is placed anterior to the most ventrally projecting part of the pubic peduncle; the possible presence of a pubic obturator foramen; an entocondylar tuber on the femur; internal flexor flanges on metatarsals II and IV; a lateral flexor ridge on metatarsal IV; and a proximoventral notch on pedal phalanx IV-1. The Tugriken Shireh alvarezsaurid is not referable to Parvicursor because of its much larger ungual phalanx on the second pedal digit. Kol ghuva is excluded from Alzarezsauridae. The two successive sister taxa for Parvicursor are Ceratonykus and Linhenykus. Ceratonykus differs little from Parvicursor and might be a synonym of the latter. Linhenykus is very similar to Parvicursor in all overlapping skeletal elements. The Parvicursorinae includes all Asian Late Cretaceous alvarezsaurids except Qiupanykus and Nemegtonykus.
英文关键词	Dinosauria Theropoda Alvarezsauridae Mongolia Late Cretaceous
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000743825100001
WOS关键词	BIRD
WOS类目	Evolutionary Biology ; Paleontology
WOS研究方向	Evolutionary Biology ; Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/375676
作者单位	[Averianov, Alexander O.] Russian Acad Sci, Zool Inst, Univ Skaya Emb 1, St Petersburg 199034, Russia; [Lopatin, Alexey, V] Russian Acad Sci, Borissiak Paleontol Inst, Profsoyuznaya Str 123, Moscow 117647, Russia
推荐引用方式 GB/T 7714	Averianov, Alexander O.,Lopatin, Alexey, V. A re-appraisal of Parvicursor remotus from the Late Cretaceous of Mongolia: implications for the phylogeny and taxonomy of alvarezsaurid theropod dinosaurs[J],2021,19(16).
APA	Averianov, Alexander O.,&Lopatin, Alexey, V.(2021).A re-appraisal of Parvicursor remotus from the Late Cretaceous of Mongolia: implications for the phylogeny and taxonomy of alvarezsaurid theropod dinosaurs.JOURNAL OF SYSTEMATIC PALAEONTOLOGY,19(16).
MLA	Averianov, Alexander O.,et al."A re-appraisal of Parvicursor remotus from the Late Cretaceous of Mongolia: implications for the phylogeny and taxonomy of alvarezsaurid theropod dinosaurs".JOURNAL OF SYSTEMATIC PALAEONTOLOGY 19.16(2021).