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Periodic shell decollation as an ecology-driven strategy in the early Cambrian Cupitheca
Sun, Haijing (孙海静)1,2,3; Yin, Zongjun (殷宗军)1,2; Li, Guoxiang (李国祥)1,2; Zhao, Fangchen (赵方臣)1,2; Zeng, Han (曾晗)1,2; Zhu, Maoyan (朱茂炎)1,2,4
2019-12-09
Source PublicationPALAEONTOLOGY
ISSN0031-0239
Pages12
Abstract

Shell decollation is a growth strategy that has been adopted by a number of invertebrate taxa to offset the metabolic and ecological disadvantages of shell growth. However, little is known about the origin and evolution of this process. We here describe well-preserved specimens of the hyolith Cupitheca decollata sp. nov. preserving the decollation process, from the early Cambrian Yu'anshan Formation (c. 518 Ma) of South China. Based on a large number of specimens collectively representing different developmental stages, we use high-resolution X-ray microtomography and scanning electronic microscopy to reconstruct the process of decollation in this taxon. Cupitheca is among the earliest known small shelly fossils, and thus our discovery confirms that periodic decollation had evolved by the onset of the Cambrian explosion, reflecting the high intensity of the predator-prey arms race in early Cambrian ecosystems. A comparison between the decollation processes of Cupitheca and other shelly invertebrates suggests that periodic decollation and the associated molecular mechanisms of calcium dissolution, uptake, allocation and deposition may have had multiple independent origins.

KeywordCambrian explosion ontogeny shell decollation ecology Cupitheca
DOI10.1111/pala.12463
Language英语
WOS KeywordFOSSIL ; MICROSTRUCTURE ; GASTROPODA ; BIOTA
Funding ProjectStrategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB26000000] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[18000000] ; National Natural Science Foundation of China[41602002] ; National Natural Science Foundation of China[41672013] ; National Natural Science Foundation of China[41890844] ; NSFC-RCUK_NERC joint[41661134048] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017360] ; State Key Laboratory of Palaeobiology and Stratigraphy (NIGPAS, CAS)[193125]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000501465400001
Funding OrganizationStrategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; NSFC-RCUK_NERC joint ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; State Key Laboratory of Palaeobiology and Stratigraphy (NIGPAS, CAS)
PublisherWILEY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/29470
Collection中国科学院南京地质古生物研究所
Corresponding AuthorYin, Zongjun (殷宗军)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Jiangsu, Peoples R China
3.Natl Maritime Museum China, Tianjin 300467, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary 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, Haijing ,Yin, Zongjun ,Li, Guoxiang ,et al. Periodic shell decollation as an ecology-driven strategy in the early Cambrian Cupitheca[J]. PALAEONTOLOGY,2019:12.
APA Sun, Haijing ,Yin, Zongjun ,Li, Guoxiang ,Zhao, Fangchen ,Zeng, Han ,&Zhu, Maoyan .(2019).Periodic shell decollation as an ecology-driven strategy in the early Cambrian Cupitheca.PALAEONTOLOGY,12.
MLA Sun, Haijing ,et al."Periodic shell decollation as an ecology-driven strategy in the early Cambrian Cupitheca".PALAEONTOLOGY (2019):12.
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