A new middle Cambrian radiodont from North China: Implications for morphological disparity and spatial distribution of hurdiids
Sun, Zhixin (孙智新)1,2; Zeng, Han (曾晗)1; Zhao, Fangchen (赵方臣)1,2
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
2020-11-15
卷号558页码:9
关键词Miaolingian Drumian Zhangxia Formation Arthropod Burgess Shale-type Soft-bodied
ISSN号0031-0182
DOI10.1016/j.palaeo.2020.109947
英文摘要

Hurdiidae, a Glade of Radiodonta that has attracted widespread attention in recent years, is notable for their massive tripartite cephalic carapace and a wide variety of feeding habits. Although the Hurdiidae has a cosmopolitan distribution in the Cambrian, their Miaolingian occurrences are restricted to Laurentia. Here we describe a new hurdiid radiodont, Cordaticaris striates gen. a sp. nov., based on well-preserved specimens from the middle Cambrian (Miaolingian, Drumian) Zhangxia Formation in Shandong Province, North China. This new taxon is characterized by a heart-shaped central element with linear ornament, frontal appendages equipped with nine blade-like endites including seven subequal elongate endites, a node-bearing 'peytoia'-type oral cone, and a trunk covered with rows of setal structures. Cordaticaris not only enriches the taxonomic diversity of Hurdiidae, but also further documents the great morphological disparity of hurdiid sclerotized body elements. The discovery of soft-bodied fossils in the Zhangxia Formation also stresses the great potential of the Miaolingian strata of North China for the preservation of non-biomineralized organisms.

资助项目Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41921002] ; National Natural Science Foundation of China[41902014] ; Jiangsu Basic Research Project[BK20191102] ; State Key Laboratory of Palaeobiology and Stratigraphy[20181105] ; State Key Laboratory of Palaeobiology and Stratigraphy[20192111]
WOS关键词BURGESS SHALE ; ANOMALOCARIDID APPENDAGES ; ORAL CONE ; ORIGIN
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
出版者ELSEVIER
WOS记录号WOS:000577193100008
资助机构Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Jiangsu Basic Research Project ; State Key Laboratory of Palaeobiology and Stratigraphy
内容类型期刊论文
源URL[http://ir.nigpas.ac.cn/handle/332004/32639]  
专题中国科学院南京地质古生物研究所
通讯作者Zhao, Fangchen (赵方臣)
作者单位1.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Sun, Zhixin ,Zeng, Han ,Zhao, Fangchen . A new middle Cambrian radiodont from North China: Implications for morphological disparity and spatial distribution of hurdiids[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,558:9.
APA Sun, Zhixin ,Zeng, Han ,&Zhao, Fangchen .(2020).A new middle Cambrian radiodont from North China: Implications for morphological disparity and spatial distribution of hurdiids.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,558,9.
MLA Sun, Zhixin ,et al."A new middle Cambrian radiodont from North China: Implications for morphological disparity and spatial distribution of hurdiids".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 558(2020):9.
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