A transitional fossil sheds light on the early evolution of the Staphylinine group of rove beetles (Coleoptera: Staphylinidae)

doi:10.1080/14772019.2021.1917705

	A transitional fossil sheds light on the early evolution of the Staphylinine group of rove beetles (Coleoptera: Staphylinidae)
	Liu, Yuchu 1; Tihelka, Erik 2; Thayer, Margaret K.3; Newton, Alfred F.3; Huang, Diying 4,5; Tian, Li 1; Cai, Chenyang 4,5
刊名	JOURNAL OF SYSTEMATIC PALAEONTOLOGY
	2021-04-23
页码	12
关键词	Oxyporinae Megalopsidiinae Yixian Formation Jehol Biota Mesozoic missing link
ISSN号	1477-2019
DOI	10.1080/14772019.2021.1917705
通讯作者	Tian, Li(tianlibgeg@163.com) ; Cai, Chenyang(cycai@nigpas.ac.cn)
英文摘要	Rove beetles of the Staphylinine group of subfamilies represent the most species-rich clade of Staphylinidae, which in turn is the most speciose beetle family. While several relationships within the Staphylinine group are well supported by morphological and molecular data alike, the basal relationships within the clade remain unresolved. In particular, understanding the largest radiation on the beetle tree of life is complicated by the absence of early-diverging transitional fossils. Here we describe a new genus and species of the Staphylinine group of subfamilies from the Lower Cretaceous Yixian Formation in eastern China (c. 125 Ma). Paroxyporus fossilis Cai gen. et sp. nov. shares a number of characters with the monogeneric subfamily Oxyporinae, namely its prognathous head with prominent apically curved mandibles, contiguous procoxae, moderately separated mesocoxae and abdominal intersegmental membranes with a 'brick-wall' pattern. It, however, shares oval procoxae and 'U'-shaped abdominal impressions with the monogeneric subfamily Megalopsidiinae. A parsimony analysis of 211 morphological characters recovered Paroxyporus gen. nov. as sister to the whole Staphylinine group except Oxyporinae, linking Oxyporinae and other clades of the Staphylinine group, and it seems to be a stem member of the Staphylinine group. As such, Paroxyporus gen. nov. may represent an early-diverging isolated lineage within the Staphylinine group, a lineage that has been recognized on the basis of morphological data but challenged by some recent molecular studies, or alternatively a stem member of the Staphylinine group. Together with described fossil members of the subfamily Oxyporinae, Paederine and Staphylinine from the Yixian Formation, Paroxyporus fossilis gen. et sp. nov. is one of the earliest representatives of the Staphylinine group in the fossil record, providing an important calibration point for understanding the timing of the early diversification of rove beetles in the Mesozoic.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[42072022] ; Youth Innovation Promotion Association of the CAS[2018347]
WOS关键词	CRETACEOUS YIXIAN FORMATION ; OXYPORINAE COLEOPTERA ; CHINA ; PHYLOGENY ; LINEAGE ; LARVAE ; GENUS ; MEGOLISTHAERUS ; BEHAVIOR ; RECORD
WOS研究方向	Evolutionary Biology ; Paleontology
语种	英语
出版者	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000650478700001
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the CAS
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/38096]
专题	中国科学院南京地质古生物研究所
通讯作者	Tian, Li; Cai, Chenyang
作者单位	1.China Univ Geosci, State Key Lab Biogeol & Environm Geol, Wuhan 430078, Peoples R China 2.Univ Bristol, Sch Earth Sci, Life Sci Bldg,Tyndall Ave, Bristol BS8 1TQ, Avon, England 3.Field Museum Nat Hist, Negaunee Integrat Res Ctr, Chicago, IL 60605 USA 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Liu, Yuchu,Tihelka, Erik,Thayer, Margaret K.,et al. A transitional fossil sheds light on the early evolution of the Staphylinine group of rove beetles (Coleoptera: Staphylinidae)[J]. JOURNAL OF SYSTEMATIC PALAEONTOLOGY,2021:12.
APA	Liu, Yuchu.,Tihelka, Erik.,Thayer, Margaret K..,Newton, Alfred F..,Huang, Diying.,...&Cai, Chenyang.(2021).A transitional fossil sheds light on the early evolution of the Staphylinine group of rove beetles (Coleoptera: Staphylinidae).JOURNAL OF SYSTEMATIC PALAEONTOLOGY,12.
MLA	Liu, Yuchu,et al."A transitional fossil sheds light on the early evolution of the Staphylinine group of rove beetles (Coleoptera: Staphylinidae)".JOURNAL OF SYSTEMATIC PALAEONTOLOGY (2021):12.