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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
Source PublicationPALAEONTOLOGY
ISSN0031-0239
Pages9
Abstract

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.

KeywordChengjiang biota Chuandianella ovata biomineralization phosphatic exoskeleton Ecdysozoa Cambrian explosion
DOI10.1111/pala.12570
Indexed BySCI
Language英语
WOS KeywordCUTICLE ; LAGERSTATTE ; MODE
Funding ProjectNational 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 Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000683172300001
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program ; 111 Project ; Key Scientific and Technological Innovation Team Project in Shaanxi Province
PublisherWILEY
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/38484
Collection中国科学院南京地质古生物研究所
Corresponding AuthorZhang, Xingliang(张兴亮)
Affiliation1.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
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
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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