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Geometric morphometric analysis of Protoconites minor from the Cambrian (Terreneuvian) Yanjiahe Formation in Three Gorges, South China
Guo, Junfeng1,2,3,4; Chen, Yanlong2,3; Song, Zuchen1; Zhang, Zhifei2,3; Qiang, Yaqin1; Betts, Marissa J.2,3,5; Zheng, Yajuan1; Yao, Xiaoyong1
2020
Source PublicationPALAEONTOLOGIA ELECTRONICA
ISSN1935-3952
Volume23Issue:3Pages:21
Abstract

The Ediacaran to Cambrian transition is a critical interval of time during which major evolutionary changes occurred. Recently, abundant Protoconites minor have been recovered from the silty shales of the lower Cambrian Yanjiahe Formation (Terreneuvian, Fortunian - Stage 2) in the Three Gorges area of South China. These fossils represent an important ecological diversification of macroscopic organisms at the onset of the Cambrian. Protoconites minor is a probable cnidarian-grade organism preserved by carbon compression. Herein, geometric morphometric analyses are applied to crack out specimens of P. minor to reveal any cryptic morphological details that may have implications for their morphological diversity, ontogenetic processes, and taxonomic identification. These statistical analyses reveal a strong relationship between size and shape, which indicates that the overall shape of P. minor was mainly controlled by allometric growth. The smaller specimens are generally wider at the anterior and more commonly have straight-sides. Larger individuals tend to be narrower at the anterior, with bending more common. Our analyses demonstrate that there are transitional forms between larger, strongly bent specimens and smaller, straight specimens, suggesting that the assemblage likely consists of a single species.

KeywordTerreneuvian Yanjiahe Biota Protoconites minor geometric morphometrics morphospace
DOI10.26879/943
Indexed BySCI
Language英语
WOS KeywordBIOSTRATIGRAPHIC CORRELATION ; GUIZHOU PROVINCE ; YANGTZE PLATFORM ; EDIACARAN ; EVOLUTION ; FOSSIL ; EXPLOSION ; SHAPE ; SIZE ; AREA
Funding ProjectNational Natural Science Foundation of China[41890844] ; National Natural Science Foundation of China[41890840] ; National Natural Science Foundation of China[41472015] ; National Natural Science Foundation of China[41672009] ; National Natural Science Foundation of China[41621003] ; National Natural Science Foundation of China[41772010] ; National Natural Science Foundation of China[41720104002] ; National Natural Science Foundation of China[41930319] ; National Natural Science Foundation of China[41702010] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; Key Scientific and Technological Innovation Team Project in Shaanxi Province ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[203106] ; Ministry of Science and the Overseas Expertise Introduction Centre for Discipline Innovation Project (111) of the Ministry of Education of China[D17013] ; China Postdoctoral Science Foundation[2017T100766]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000608919100004
Funding OrganizationNational Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Key Scientific and Technological Innovation Team Project in Shaanxi Province ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) ; Ministry of Science and the Overseas Expertise Introduction Centre for Discipline Innovation Project (111) of the Ministry of Education of China ; China Postdoctoral Science Foundation
PublisherCOQUINA PRESS
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/37723
Collection中国科学院南京地质古生物研究所
Corresponding AuthorChen, Yanlong
Affiliation1.Changan Univ, Sch Earth Sci & Resources, Key Lab Western Chinas Mineral Resources & Geol E, Minist Educ, Xian 710054, Peoples R China
2.Northwest Univ, Early Life Inst, Shaanxi Key Lab Early Life & Environm, State Key Lab Continental Dynam, Xian 710069, Peoples R China
3.Northwest Univ, Dept Geol, Xian 710069, Peoples R China
4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
5.Univ New England, Palaeosci Res Ctr, Sch Environm & Rural Sci, Armidale, NSW 2351, Australia
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Guo, Junfeng,Chen, Yanlong,Song, Zuchen,et al. Geometric morphometric analysis of Protoconites minor from the Cambrian (Terreneuvian) Yanjiahe Formation in Three Gorges, South China[J]. PALAEONTOLOGIA ELECTRONICA,2020,23(3):21.
APA Guo, Junfeng.,Chen, Yanlong.,Song, Zuchen.,Zhang, Zhifei.,Qiang, Yaqin.,...&Yao, Xiaoyong.(2020).Geometric morphometric analysis of Protoconites minor from the Cambrian (Terreneuvian) Yanjiahe Formation in Three Gorges, South China.PALAEONTOLOGIA ELECTRONICA,23(3),21.
MLA Guo, Junfeng,et al."Geometric morphometric analysis of Protoconites minor from the Cambrian (Terreneuvian) Yanjiahe Formation in Three Gorges, South China".PALAEONTOLOGIA ELECTRONICA 23.3(2020):21.
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