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Phosphatic carapace of the waptiid arthropod Chuandianella ovata and biomineralization of ecdysozoans
Liu, Cong1; Fu, Dongjing1; Zhang, Xingliang(张兴亮)1,2
2021-08-09
发表期刊PALAEONTOLOGY
ISSN0031-0239
页码9
摘要

Arthropods other than trilobites or bradoriids constitute a major component of many Cambrian Burgess-Shale-type Lagerstatten. Owing to their scarcity in other less well-preserved deposits, they are generally regarded as lightly sclerotized but non-mineralized. Here we show that Chuandianella ovata, one of the typical lightly sclerotized arthropods from the Chengjiang biota, reinforced its carapace with phosphatic mineralization. Multiple methods reveal a pitted microstructure and organophosphatic composition of the carapace. Nanogranules of amorphous calcium phosphate (ACP) on the fossil carapace are comparable to those of recent crustacean microstructures, implying that arthropods may have a conserved mechanism of phosphatic mineralization since the Cambrian. The fossil record indicates that the mineralization of ecdysozoans, preceded by the mineralization of lophotrochozoans in the Terreneuvian (similar to 541-521 Ma), appeared in Cambrian Stage 3 (similar to 521-514 Ma) and surpassed the range of living counterparts in phylogenetic coverage. This phenomenon strengthens the view that biomineralization has evolved multiple times independently within the Metazoa. The sudden appearance of mineralized skeletons in the early history of metazoan evolution is frequently attributed to external environment drivers. However, this viewpoint cannot explain the minerology and appearance time of metazoan lineages with mineralized hard parts during the Cambrian explosion.

关键词Chengjiang biota Chuandianella ovata biomineralization phosphatic exoskeleton Ecdysozoa Cambrian explosion
DOI10.1111/pala.12570
收录类别SCI
语种英语
关键词[WOS]CUTICLE ; LAGERSTATTE ; MODE
资助项目National Natural Science Foundation of China[41890845] ; National Natural Science Foundation of China[41621003] ; National Natural Science Foundation of China[41772011] ; National Natural Science Foundation of China[41930139] ; National Key Research and Development Program[2017YFC0603101] ; 111 Project[D17013] ; Key Scientific and Technological Innovation Team Project in Shaanxi Province
WOS研究方向Paleontology
WOS类目Paleontology
WOS记录号WOS:000683172300001
项目资助者National Natural Science Foundation of China ; National Key Research and Development Program ; 111 Project ; Key Scientific and Technological Innovation Team Project in Shaanxi Province
出版者WILEY
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/38484
专题中国科学院南京地质古生物研究所
通讯作者Zhang, Xingliang(张兴亮)
作者单位1.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, Nanjing 210008, Peoples R China
通讯作者单位中国科学院南京地质古生物研究所
推荐引用方式
GB/T 7714
Liu, Cong,Fu, Dongjing,Zhang, Xingliang. Phosphatic carapace of the waptiid arthropod Chuandianella ovata and biomineralization of ecdysozoans[J]. PALAEONTOLOGY,2021:9.
APA Liu, Cong,Fu, Dongjing,&Zhang, Xingliang.(2021).Phosphatic carapace of the waptiid arthropod Chuandianella ovata and biomineralization of ecdysozoans.PALAEONTOLOGY,9.
MLA Liu, Cong,et al."Phosphatic carapace of the waptiid arthropod Chuandianella ovata and biomineralization of ecdysozoans".PALAEONTOLOGY (2021):9.
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