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

doi:10.1098/rsos.191181

IVPP-IR > 中科院古脊椎所（2000年以后）

	Reappraisal of the Silurian placoderm Silurolepis and insights into the dermal neck joint evolution
	Zhu, You-an 1,2,3; Lu, Jing 1,2; Zhu, Min1,2,4
	2019-09-04
发表期刊	ROYAL SOCIETY OPEN SCIENCE
ISSN	2054-5703
卷号	6 期号:9 页码:13
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.
关键词	placoderms gnathostomes neck joint Silurian Silurolepis
DOI	10.1098/rsos.191181
关键词[WOS]	TETRAPOD-LIKE FISH ; CHINA ; INTERRELATIONSHIPS ; ARTHRODIRA ; ORIGINS ; GENUS ; JAWS
收录类别	SCI
语种	英语
资助项目	Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19050102] ; National Natural Science Foundation of China[41530102] ; National Natural Science Foundation of China[41872023] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; Wallenberg Scholarship from the Knut and Alice Wallenberg Foundation ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-DQC002] ; Swedish Research Council[2014-4102]
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000488745800058
出版者	ROYAL SOC
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/17007
专题	中科院古脊椎所（2000年以后）
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.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China 3.Uppsala Univ, Subdept Evolut & Dev, Norbyvagen 18A, S-75236 Uppsala, Sweden 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, 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.

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