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Niche expansion of archaeocyaths during their palaeogeographic migration: Evidence from the Chengjiang Biota

文献类型：期刊论文

作者Yang, Aihua1; Luo, Cui2; Han, Jian3; Zhuravlev, Andrey Yu.4; Reitner, Joachim5,6; Sun, Haijing2; Zeng, Han2; Zhao, Fangchen2; Hu, Shixue7
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2024-11-01
卷号653页码:8
关键词Archaeocyath Siliciclastic Cambrian explosion Evolution Porifera
ISSN号0031-0182
DOI10.1016/j.palaeo.2024.112419
通讯作者Yang, Aihua(ahyang@nju.edu.cn) ; Luo, Cui(cluo@nigpas.ac.cn)
英文摘要Archaeocyaths were among the iconic metazoans of the early Cambrian seas and dominated the earliest Phanerozoic reef system before their dramatic decline toward the end of the early Cambrian time (c. 510 million years ago (Ma)). Over their almost 200-year research history, these organisms have been recognized as stenobionts adapted to a very narrow range of carbonate-dominated environments. Here, for the first time, we report three sorts of archaeocyath-like fossils from the Chengjiang Biota (c. 518 Ma), which was developed on a siliciclastic shelf devoid of any reefal buildups. These fossils are preserved in storm-induced mudstone without evidence of fragmentation during transportation. All of them share the same preservation mode involving replacement by clay minerals and iron oxides but exhibit archaeocyath-type external skeletal features. One species, which used to be interpreted as a dasycladalean alga, shows an aquiferous system and a skeletal ontogeny that is typical of archaeocyaths. It can be assigned to Propriolynthus sp. The other two species are comparable with representatives of the superfamily Ethmocoscinoidea and the family Sigmocyathidae, respectively. Propriolynthus sp. represents the first recognized one-walled archaeocyath in South China and fills a missing link in the migration route of onewalled archaeocyaths, although not in the phase of a reef-builder or dweller. This data reveals new aspects of archaeocyath evolution by niche expansion into siliciclastic-dominated seas at the acme of their diversification.
WOS关键词EARLY CAMBRIAN REEFS ; DASYCLADALEAN ALGA ; LAGERSTATTE ; DIVERSITY
资助项目National Key Research and Development Program of China[2022YFF0800100] ; National Natural Science Foundation of China[42072006] ; National Natural Science Foundation of China[41872011] ; National Natural Science Foundation of China[41921002] ; National Natural Science Foundation of China[41972016] ; National Natural Science Foundation of China[42372012]
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
WOS记录号WOS:001298075700001
出版者ELSEVIER
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China
源URL[http://ir.nigpas.ac.cn/handle/332004/44236]  
专题中国科学院南京地质古生物研究所
通讯作者Yang, Aihua; Luo, Cui
作者单位1.Nanjing Univ, Ctr Res & Educ Biol Evolut & Environm, Sch Earth Sci & Engn, Nanjing, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China
3.Northwest Univ, Dept Geol, Shaanxi Key Lab Early Life & Environm, State Key Lab Continental Dynam, Xian, Peoples R China
4.Russian Acad Sci, Borissiak Palaeontol Inst, Moscow, Russia
5.Univ Gottingen, Ctr Geosci, Dept Geobiol, Gottingen, Germany
6.Gottingen Acad Sci & Humanities Lower Saxony, Gottingen, Germany
7.China Geol Survey, Chengdu Ctr, Chengdu, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Aihua,Luo, Cui,Han, Jian,et al. Niche expansion of archaeocyaths during their palaeogeographic migration: Evidence from the Chengjiang Biota[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2024,653:8.
APA Yang, Aihua.,Luo, Cui.,Han, Jian.,Zhuravlev, Andrey Yu..,Reitner, Joachim.,...&Hu, Shixue.(2024).Niche expansion of archaeocyaths during their palaeogeographic migration: Evidence from the Chengjiang Biota.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,653,8.
MLA Yang, Aihua,et al."Niche expansion of archaeocyaths during their palaeogeographic migration: Evidence from the Chengjiang Biota".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 653(2024):8.

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来源：南京地质古生物研究所

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