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

文献类型：期刊论文

作者Yun, Hao1,2,3,4; Reitner, Joachim3,4; Zhang, Xingliang1,2,5
刊名PALZ
出版日期2023-07-24
页码12
关键词Chancelloriids Scleritome Small shelly fossils Chengjiang biota South China
ISSN号0031-0220
DOI10.1007/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.
WOS关键词WELL-PRESERVED SCLERITOMES ; SMALL SHELLY FOSSILS ; EASTERN YUNNAN ; NORTH CHINA ; SHALE ; CHENGJIANG ; BIOMINERALIZATION ; MICROFOSSILS ; PATERIMITRA ; MOUNTAINS
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研究方向Paleontology
语种英语
WOS记录号WOS:001034480700001
出版者SPRINGER HEIDELBERG
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
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.

入库方式： OAI收割

来源：南京地质古生物研究所

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