| New artiopodan euarthropods from the Chengjiang fauna (Cambrian, Stage 3) at Malong, Yunnan, China |
| 通讯作者 | Zeng, Han(hzeng@nigpas.ac.cn)
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| Zhu, Yuyan; Zeng, Han1 ; Liu, Yao; Zhao, Fangchen
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| 2023
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| 发表期刊 | ACTA PALAEONTOLOGICA POLONICA
(IF:1.887[JCR-2017],1.709[5-Year]) |
| ISSN | 0567-7920
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| 卷号 | 68期号:3页码:427-440 |
| 摘要 | The artiopodans, consisting of trilobites and their relatives, were a major euarthropod group in the Paleozoic. Since the first discovery ofNaraoia from the Chengjiang fauna, a significant number of artiopodans have been subsequently found in China. Here we describe three new artiopodan species from the lower Cambrian Chengjiang fauna (Cambrian Series 2, Stage 3) at Malong, Yunnan, China. Zhugeia acuticaudata gen. et sp. nov. is defined by a semielliptical cephalon with long genal spines, nine overlapping thoracic tergites, and a pygidium with an elongated needle-like median spine. Its cephalic shield covers multiple anterior thoracic tergites. Tonglaiia bispinosa gen. et sp. nov. is defined by a suboval cephalon, seven thoracic tergites, and a micropygous pygidium with a pair of parallel posteriormost spines. Sidneyia malongensis sp. nov., a new occurrence of Sidneyia from South China, is defined by a crescent-shaped cephalon, eight imbricated tergites, and an abdomen consisting of two cylindrical segments and a tail fluke. The evolutionary affinities of these new taxa are reconstructed and discussed in a phylogenetic context. Phylogenetic analyses resolve Z. acuticaudata among the xandarellids and T. bispinosa gen. et sp. nov. as a trilobitomorph with an uncertain placement, The discovery of three new species improves the biodiversity of artiopodans from the Cambrian and the Chengjiang fauna. |
| 关键词 | Arthropoda
Trilobitomorpha
Vicissicaudata
Burgess Shale-type fossils
exceptional preservation
Lagerstatten
Cambrian
Yu'anshan Formation
Chengjiang
|
| DOI | 10.4202/app.01080.2023
|
| 收录类别 | SCI
|
| 语种 | 英语
|
| 关键词[WOS] | ARTHROPOD SIDNEYIA-INEXPECTANS
; BURGESS SHALE
; SERIES 2
; BIOTA
; LAGERSTATTE
; PHYLOGENY
; DIVERSITY
; EVOLUTION
; ORIGIN
|
| 资助项目 | National Key Research and Development Program of China[2021YFA0718100]
; National Key Research and Development Program of China[2022YFF0800100]
; National Natural Science Foundation of China[42272019]
; National Natural Science Foundation of China[42072006]
; Youth Innovation Promotion Association of Chinese Academy of Sciences[2023322]
|
| WOS研究方向 | Paleontology
|
| WOS类目 | Paleontology
|
| WOS记录号 | WOS:001083719500003
|
| 项目资助者 | National Key Research and Development Program of China
; National Natural Science Foundation of China
; Youth Innovation Promotion Association of Chinese Academy of Sciences
|
| 出版者 | INST PALEOBIOLOGII PAN
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://ir.nigpas.ac.cn/handle/332004/43195
|
| 专题 | 中国科学院南京地质古生物研究所
|
| 通讯作者 | Zeng, Han |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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推荐引用方式
GB/T 7714 |
Zhu, Yuyan,Zeng, Han,Liu, Yao,et al. New artiopodan euarthropods from the Chengjiang fauna (Cambrian, Stage 3) at Malong, Yunnan, China[J]. ACTA PALAEONTOLOGICA POLONICA,2023,68(3):427-440.
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| APA |
Zhu, Yuyan,Zeng, Han,Liu, Yao,&Zhao, Fangchen.(2023).New artiopodan euarthropods from the Chengjiang fauna (Cambrian, Stage 3) at Malong, Yunnan, China.ACTA PALAEONTOLOGICA POLONICA,68(3),427-440.
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| MLA |
Zhu, Yuyan,et al."New artiopodan euarthropods from the Chengjiang fauna (Cambrian, Stage 3) at Malong, Yunnan, China".ACTA PALAEONTOLOGICA POLONICA 68.3(2023):427-440.
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