中国科学院南京地质古生物研究所机构知识库

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	Multiple origins of dorsal ecdysial sutures in trilobites and their relatives
通讯作者	Losso, Sarah R.([email protected]) ; Pates, Stephen([email protected]) ; Chen, Ai-lin([email protected])
	Du, Kun-sheng1,2,3; Guo, Jin2,3,4; Losso, Sarah R.5,6; Pates, Stephen7,8; Li, Ming9; Chen, Ai-lin1,10
	2024-10-02
发表期刊	ELIFE
ISSN	2050-084X
卷号	12页码:22
摘要	Euarthropods are an extremely diverse phylum in the modern, and have been since their origination in the early Palaeozoic. They grow through moulting the exoskeleton (ecdysis) facilitated by breaking along lines of weakness (sutures). Artiopodans, a group that includes trilobites and their non-biomineralizing relatives, dominated arthropod diversity in benthic communities during the Palaeozoic. Most trilobites - a hyperdiverse group of tens of thousands of species - moult by breaking the exoskeleton along cephalic sutures, a strategy that has contributed to their high diversity during the Palaeozoic. However, the recent description of similar sutures in early diverging non-trilobite artiopodans means that it is unclear whether these sutures evolved deep within Artiopoda, or convergently appeared multiple times within the group. Here, we describe new well-preserved material of Acanthomeridion, a putative early diverging artiopodan, including hitherto unknown details of its ventral anatomy and appendages revealed through CT scanning, highlighting additional possible homologous features between the ventral plates of this taxon and trilobite free cheeks. We used three coding strategies treating ventral plates as homologous to trilobite-free cheeks, to trilobite cephalic doublure, or independently derived. If ventral plates are considered homologous to free cheeks, Acanthomeridion is recovered sister to trilobites, however, dorsal ecdysial sutures are still recovered at many places within Artiopoda. If ventral plates are considered homologous to doublure or non-homologous, then Acanthomeridion is not recovered as sister to trilobites, and thus the ventral plates represent a distinct feature to trilobite doublure/free cheeks.
关键词	arthropoda cambrian chengjiang biota ecdysis dorsal suture
DOI	10.7554/eLife.93113
收录类别	SCI
语种	英语
关键词[WOS]	EVOLUTION ; ARTHROPOD ; PHYLOGENY ; LAGERSTATTE ; MORPHOLOGY ; ONTOGENY
资助项目	National Natural Science Foundation of China[42262004] ; National Natural Science Foundation of China[42202003] ; National Natural Science Foundation of China[41662003] ; State Key Laboratory for Palaeobiology and Stratigraphy[193104] ; Herchel Smith Postdoctoral Fellowship ; Natural Environment Research Council[NE/X017745/1]
WOS研究方向	Life Sciences & Biomedicine - Other Topics
WOS类目	Biology
WOS记录号	WOS:001328352100001
项目资助者	National Natural Science Foundation of China ; State Key Laboratory for Palaeobiology and Stratigraphy ; Herchel Smith Postdoctoral Fellowship ; Natural Environment Research Council
出版者	eLIFE SCIENCES PUBL LTD
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44414
专题	中国科学院南京地质古生物研究所
通讯作者	Losso, Sarah R.; Pates, Stephen; Chen, Ai-lin
作者单位	1.Yuxi Normal Univ, Res Ctr Paleobiol, Yuxi, Peoples R China 2.Yunnan Univ, Inst Palaeontol, Key Lab Palaeobiol, Kunming, Peoples R China 3.Yunnan Univ, Inst Palaeontol, MEC Int Joint Lab Palaeoenvironment, Kunming, Peoples R China 4.Chengjiang Fossil Site World Heritage, Management Comm, Chengjiang, Peoples R China 5.Harvard Univ, Museum Comparat Zool, Cambridge, MA 02138 USA 6.Harvard Univ, Dept Organism & Evolutionary Biol, Cambridge, MA 02138 USA 7.Univ Exeter, Ctr Ecol & Conservat, Penryn, England 8.Univ Cambridge, Dept Zool, Downing St, Cambridge, England 9.Chinese Acad Geol Sci, Inst Geol, Beijing, Peoples R China 10.Nanjing Inst Geol & Paleontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Du, Kun-sheng,Guo, Jin,Losso, Sarah R.,et al. Multiple origins of dorsal ecdysial sutures in trilobites and their relatives[J]. ELIFE,2024,12:22.
APA	Du, Kun-sheng,Guo, Jin,Losso, Sarah R.,Pates, Stephen,Li, Ming,&Chen, Ai-lin.(2024).Multiple origins of dorsal ecdysial sutures in trilobites and their relatives.ELIFE,12,22.
MLA	Du, Kun-sheng,et al."Multiple origins of dorsal ecdysial sutures in trilobites and their relatives".ELIFE 12(2024):22.

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