Body reconstruction, taxonomy, and biostratigraphy of a 'problematic' chancelloriid

doi:10.1007/s12542-023-00660-y

	Body reconstruction, taxonomy, and biostratigraphy of a 'problematic' chancelloriid
	Yun, Hao 1,2,3,4; Reitner, Joachim 3,4; Zhang, Xingliang 1,2,5
刊名	PALZ
	2023-07-24
页码	12
关键词	Chancelloriids Scleritome Small shelly fossils Chengjiang biota South China
ISSN号	0031-0220
DOI	10.1007/s12542-023-00660-y
通讯作者	Yun, Hao(yunhao@nwu.edu.cn)
英文摘要	Chancelloriids are a group of 'problematic' fossils characterized by bag-shaped body equipped with mineralized sclerites on the external surface. Among the chancelloriid taxa, the genus Dimidia was known only by isolated sclerites from small shelly faunas and once regarded as a junior synonym of Allonnia. The complete body of Dimidia simplex Jiang is described herein for the first time, based on well-preserved specimens from the Chengjiang biota (Cambrian Stage 3) of South China. The name Dimidia is resurrected since the characteristic sclerites in the scleritome are distinctive within all known chancelloriid genera with complete bodies. The sclerites of Dimidia are densely arranged, each composed of two symmetrical, acute rays that pointed out with their long axes nearly vertical to the body surface, structurally representing an intermediate type between the single-rayed and the common rosette-like composite sclerites of chancelloriids. The remains of Dimidia were previously found across South China, Gondwana, and Laurentia, and stratigraphically ranging from the upper Stage 2 to Wuliuan Stage of the Cambrian. The discovery of complete bodies of Dimidia contributes to revealing the diversity and clarifying the 'problematic' taxonomy of chancelloriids, and emphasizes the necessity to scrutinize more scleritome fossils to interpret the taxonomy and phylogenetic affinity of other small shelly fossils.
资助项目	National Natural Science Foundation of China[41890845] ; National Natural Science Foundation of China[42002011] ; National Natural Science Foundation of China[41930319] ; National Natural Science Foundation of China[41621003] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; 111 Project[D17013] ; Sino-German (CSC-DAAD) postdoc scholarship program[202006970034/91809892]
WOS关键词	WELL-PRESERVED SCLERITOMES ; SMALL SHELLY FOSSILS ; EASTERN YUNNAN ; NORTH CHINA ; SHALE ; CHENGJIANG ; BIOMINERALIZATION ; MICROFOSSILS ; PATERIMITRA ; MOUNTAINS
WOS研究方向	Paleontology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:001034480700001
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; 111 Project ; Sino-German (CSC-DAAD) postdoc scholarship program
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/42587]
专题	中国科学院南京地质古生物研究所
通讯作者	Yun, Hao
作者单位	1.Northwest Univ, State Key Lab Continental Dynam, Xian 710069, Peoples R China 2.Northwest Univ, Dept Geol, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China 3.Gottingen Acad Sci & Humanities, D-37073 Gottingen, Germany 4.Univ Gottingen, Ctr Geosci, Dept Geobiol, D-37077 Gottingen, Germany 5.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Yun, Hao,Reitner, Joachim,Zhang, Xingliang. Body reconstruction, taxonomy, and biostratigraphy of a 'problematic' chancelloriid[J]. PALZ,2023:12.
APA	Yun, Hao,Reitner, Joachim,&Zhang, Xingliang.(2023).Body reconstruction, taxonomy, and biostratigraphy of a 'problematic' chancelloriid.PALZ,12.
MLA	Yun, Hao,et al."Body reconstruction, taxonomy, and biostratigraphy of a 'problematic' chancelloriid".PALZ (2023):12.