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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
2020-11-15
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume558Pages:9
Abstract

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.

KeywordMiaolingian Drumian Zhangxia Formation Arthropod Burgess Shale-type Soft-bodied
DOI10.1016/j.palaeo.2020.109947
Indexed BySCI
Language英语
WOS KeywordBURGESS SHALE ; ANOMALOCARIDID APPENDAGES ; ORAL CONE ; ORIGIN
Funding ProjectStrategic 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 Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000577193100008
Funding OrganizationStrategic 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
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/32640
Collection中国科学院南京地质古生物研究所
Corresponding AuthorZhao, Fangchen (赵方臣)
Affiliation1.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
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
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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