Reappraisal of the Silurian placoderm Silurolepis and insights into the dermal neck joint evolution

doi:10.1098/rsos.191181

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	Reappraisal of the Silurian placoderm Silurolepis and insights into the dermal neck joint evolution
	Zhu, You-an 1,3,4; Lu, Jing 1,4; Zhu, Min 1,2,4
刊名	ROYAL SOCIETY OPEN SCIENCE
	2019-09-04
卷号	6 期号:9 页码:13
关键词	placoderms gnathostomes neck joint Silurian Silurolepis
ISSN号	2054-5703
DOI	10.1098/rsos.191181
通讯作者	Zhu, Min(zhumin@ivpp.ac.cn)
英文摘要	Silurolepis platydorsalis, a Silurian jawed vertebrate originally identified as an antiarch, is here redescribed as a maxillate placoderm close to Qilinyu and is anteroposteriorly reversed as opposed to the original description. The cuboid trunk shield possesses three longitudinal cristae, obstanic grooves on the trunk shield and three median dorsal plates, all uniquely shared with Qilinyu. Further preparation reveals the morphology of the dermal neck joint, with slot-shaped articular fossae on the trunk shield similar to Qilinyu and antiarchs. However, new tomographic data reveal that Qilinyu uniquely bears a dual articulation between the skull roof and trunk shield, which does not fit into the traditional 'ginglymoid' and 'reverse ginglymoid' categories. An extended comparison in early jawed vertebrates confirms that a sliding-type dermal neck joint is widely distributed and other types are elaborated in different lineages by developing various laminae. Nine new characters related to the dermal neck joint are proposed for a new phylogenetic analysis, in which Silurolepis forms a clade with Qilinyu. The current phylogenetic framework conflicts with the parsimonious evolution of dermal neck joints in suggesting that the shared trunk shield characters between antiarchs and Qilinyu are independently acquired, and the sliding-type joint in Entelognathus is reversely evolved from the dual articulation in Qilinyu.
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19050102] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41530102] ; National Natural Science Foundation of China[41872023] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-DQC002] ; Swedish Research Council[2014-4102] ; Wallenberg Scholarship from the Knut and Alice Wallenberg Foundation
WOS关键词	TETRAPOD-LIKE FISH ; CHINA ; INTERRELATIONSHIPS ; ARTHRODIRA ; ORIGINS ; GENUS ; JAWS
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	ROYAL SOC
WOS记录号	WOS:000488745800058
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Swedish Research Council ; Wallenberg Scholarship from the Knut and Alice Wallenberg Foundation
内容类型	期刊论文
源URL	[http://119.78.100.205/handle/311034/17005]
专题	古脊椎动物与古人类研究所_图书馆1
通讯作者	Zhu, Min
作者单位	1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, 142 Xi Zhi Men Wai St, Beijing 100044, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Uppsala Univ, Subdept Evolut & Dev, Norbyvagen 18A, S-75236 Uppsala, Sweden 4.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Zhu, You-an,Lu, Jing,Zhu, Min. Reappraisal of the Silurian placoderm Silurolepis and insights into the dermal neck joint evolution[J]. ROYAL SOCIETY OPEN SCIENCE,2019,6(9):13.
APA	Zhu, You-an,Lu, Jing,&Zhu, Min.(2019).Reappraisal of the Silurian placoderm Silurolepis and insights into the dermal neck joint evolution.ROYAL SOCIETY OPEN SCIENCE,6(9),13.
MLA	Zhu, You-an,et al."Reappraisal of the Silurian placoderm Silurolepis and insights into the dermal neck joint evolution".ROYAL SOCIETY OPEN SCIENCE 6.9(2019):13.