<i>Innovatiocaris</i>, a complete radiodont from the early Cambrian Chengjiang Lagerstatte and its implications for the phylogeny of Radiodonta

doi:10.1144/jgs2021-164

	Innovatiocaris, a complete radiodont from the early Cambrian Chengjiang Lagerstatte and its implications for the phylogeny of Radiodonta
	Zeng, Han 2,3; Zhao, Fangchen 1,2,3; Zhu, Maoyan 1,2,3
刊名	JOURNAL OF THE GEOLOGICAL SOCIETY
	2023-01-06
卷号	180 期号:1 页码:17
ISSN号	0016-7649
DOI	10.1144/jgs2021-164
通讯作者	Zhao, Fangchen(fczhao@nigpas.ac.cn)
英文摘要	The Paleozoic radiodonts are important for understanding the evolution and ecology of early euarthropods. However, complete radiodont fossils are very rare, despite their central roles in understanding radiodont palaeobiology. Here we describe Innovatiocaris maotianshanensis gen. et sp. nov. in detail based on an iconic complete radiodont specimen from the early Cambrian Chengjiang Lagerstatte of China. The head of I. maotianshanensis has a pair of stalked eyes, an ovate dorsal sclerite, a pair of frontal appendages composed of 11 distal articulated podomeres bearing spiky endites with only anterior auxiliary spines, and a putative triradial oral cone. The body possesses six anterior pairs of small differentiated neck flaps and 10 posterior pairs of trunk flaps, with soft tissues including alimentary canal and musculature preserved. The tail includes a tail fan comprising three pairs of lateral blades and a pair of very long furcae. Another two new species, Innovatiocaris? sp. and I.? multispiniformis sp. nov., are established based on the frontal appendages with different numbers of anterior auxiliary spines and are tentatively assigned to Innovatiocaris. Phylogenetic analysis retrieves Innovatiocaris as either a basal member of Hurdiidae or an early-branching lineage of the non-hurdiid clade. Thus, Innovatiocaris provides new insights into the radiodont phylogeny and illuminates the early diversification of Radiodonta.
资助项目	National Key Research and Development Program of China[2021YFA0718100] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41921002] ; National Natural Science Foundation of China[41902014] ; National Natural Science Foundation of China[42072006] ; Jiangsu Basic Research Project[BK20191102] ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences[20192111] ; Smithsonian Post-doctoral Fellowship
WOS关键词	GREAT-APPENDAGE ARTHROPOD ; BURGESS SHALE ; ORAL CONE ; SERIES 2 ; ANOMALOCARIS ; BIOTA ; MORPHOLOGY ; DIVERSITY ; EVOLUTION ; HOMOLOGY
WOS研究方向	Geology
语种	英语
出版者	GEOLOGICAL SOC PUBL HOUSE
WOS记录号	WOS:001062571500001
资助机构	National Key Research and Development Program of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Jiangsu Basic Research Project ; State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences ; Smithsonian Post-doctoral Fellowship
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/43179]
专题	中国科学院南京地质古生物研究所
通讯作者	Zhao, Fangchen
作者单位	1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing, Peoples R China 3.Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Zeng, Han,Zhao, Fangchen,Zhu, Maoyan. Innovatiocaris, a complete radiodont from the early Cambrian Chengjiang Lagerstatte and its implications for the phylogeny of Radiodonta[J]. JOURNAL OF THE GEOLOGICAL SOCIETY,2023,180(1):17.
APA	Zeng, Han,Zhao, Fangchen,&Zhu, Maoyan.(2023).Innovatiocaris, a complete radiodont from the early Cambrian Chengjiang Lagerstatte and its implications for the phylogeny of Radiodonta.JOURNAL OF THE GEOLOGICAL SOCIETY,180(1),17.
MLA	Zeng, Han,et al."Innovatiocaris, a complete radiodont from the early Cambrian Chengjiang Lagerstatte and its implications for the phylogeny of Radiodonta".JOURNAL OF THE GEOLOGICAL SOCIETY 180.1(2023):17.