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	Phylogenetic affinities and evolution of the Early Cambrian hexangulaconulariids
通讯作者	Guo, Junfeng([email protected]) ; Han, Jian([email protected]) ; Van Iten, Heyo([email protected])
	Song, Zuchen1; Guo, Junfeng1,2; Han, Jian2; Van Iten, Heyo3,4; Peng, Jiaxin1; Qiang, Yaqin1; Zhang, Boyao1; Zhao, Xiaofang1; Li, Guoxiang5,6; Wen, Hanjie1,7
	2024-12-31
发表期刊	JOURNAL OF SYSTEMATIC PALAEONTOLOGY
ISSN	1477-2019
卷号	22期号:1页码:19
摘要	The abrupt appearance of abundant small shelly fossils (SSFs) near the base of the Cambrian System signals a key event in the evolutionary history of the Kingdom Metazoa. Among the probable cnidarian taxa, the SSF family Hexangulaconulariidae (Terreneuvian Series) is characterized by a fan-shaped, biradially symmetrical periderm having distinct apical and abapical portions, the latter of which bears multiple faces. Documented herein are three new hexangulaconulariid specimens from Cambrian Stage 2 on the Yangtze Platform (South China). The new specimens exhibit nine or 11 faces on each of the two sides of the abapical portion. Results of a Bayesian analysis of the phylogenetic relationships among hexangulaconulariids, carinachitids, conulariids, olivooids, and extant cnidarian genera indicate that hexangulaconulariids constitute a well-defined clade within a polytomic, stem-group Medusozoa that also includes carinachitids, conulariids and olivooids. The evolution of hexangulaconulariids featured multiple instances of increase in the total number of faces, modification of the morphology of the interfacial boundaries, and increase in the total size of the periderm. Increase in the number of faces appears to have been achieved in part by the transformation of a single ancestral face into three faces, through the development of a longitudinal furrow or ridge along each of the two adapically converging loci of inflection points (angular bends) of the prominent transverse ribs of the ancestral face.
关键词	hexangulaconulariids Cnidaria small shelly fossils evolution Terreneuvian
DOI	10.1080/14772019.2024.2417668
收录类别	SCI
语种	英语
关键词[WOS]	SOUTH CHINA ; YANGTZE PLATFORM ; SICHUAN ; STRATIGRAPHY ; DIVERGENCE ; MEDUSOZOA ; BOUNDARY ; FOSSILS ; CHOICE
资助项目	College of Earth Science and Engineering, Shandong University of Science and Technology ; Natural Science Foundation of China[42172016] ; Natural Science Foundation of China[42402011] ; Natural Science Foundation of China[42372012] ; Natural Science Foundation of China[92162214] ; Natural Science Foundation of China[41773015] ; National Key Research and Development Program of China[2023YFF0803601] ; Key Scientific and Technological Innovation Team Project in Shaanxi Province ; Shaanxi Provincial Natural Science Foundation[2024JC-YBMS-231]
WOS研究方向	Evolutionary Biology ; Paleontology
WOS类目	Evolutionary Biology ; Paleontology
WOS记录号	WOS:001362720600001
项目资助者	College of Earth Science and Engineering, Shandong University of Science and Technology ; Natural Science Foundation of China ; National Key Research and Development Program of China ; Key Scientific and Technological Innovation Team Project in Shaanxi Province ; Shaanxi Provincial Natural Science Foundation
出版者	TAYLOR & FRANCIS LTD
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44608
专题	中国科学院南京地质古生物研究所
通讯作者	Guo, Junfeng; Han, Jian; Van Iten, Heyo
作者单位	1.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Peoples R China 2.Northwest Univ, Dept Geol, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China 3.Hanover Coll, Dept Geol, Hanover, IN 47243 USA 4.Cincinnati Museum Ctr, Dept Invertebrate Paleontol, 1301 Western Ave, Cincinnati, OH 45203 USA 5.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Key Lab Palaeobiol & Petr Stratig, Nanjing 210008, Peoples R China 6.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China 7.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Song, Zuchen,Guo, Junfeng,Han, Jian,et al. Phylogenetic affinities and evolution of the Early Cambrian hexangulaconulariids[J]. JOURNAL OF SYSTEMATIC PALAEONTOLOGY,2024,22(1):19.
APA	Song, Zuchen.,Guo, Junfeng.,Han, Jian.,Van Iten, Heyo.,Peng, Jiaxin.,...&Wen, Hanjie.(2024).Phylogenetic affinities and evolution of the Early Cambrian hexangulaconulariids.JOURNAL OF SYSTEMATIC PALAEONTOLOGY,22(1),19.
MLA	Song, Zuchen,et al."Phylogenetic affinities and evolution of the Early Cambrian hexangulaconulariids".JOURNAL OF SYSTEMATIC PALAEONTOLOGY 22.1(2024):19.

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