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Crustacean microcoprolites from the Middle Triassic Luoping Biota, China: Evidence for primary producers in the first Modern-type marine ecosystems

文献类型：期刊论文

作者Chen, Yuxuan6,7,8; Luo, Mao5,7,8; Benton, Michael J.4; Hu, Shixue2,3; Zhang, Qiyue2,3; Ji, Cheng5,7,8; Huang, Jinyuan2,3; Kou, Qi1; Zhou, Changyong2,3; Wen, Wen3
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2023-12-15
卷号632页码:13
ISSN号0031-0182
关键词Microcoprolites Lophogastrids Food web Middle Triassic Biotic recovery Bottom-up perspective
DOI10.1016/j.palaeo.2023.111840
通讯作者Luo, Mao(maoluo@nigpas.ac.cn) ; Benton, Michael J.(mike.benton@bristol.ac.uk)
英文摘要Modern-type marine ecosystems became established in the Triassic following the devastation of the PermianTriassic mass extinction. Attention has been focused on higher levels of these food chains, but the primary levels have not been established in detail. Here, we present evidence of microcoprolites from the Luoping biota (early Anisian, Middle Triassic) that lophogastrid shrimps were feeding on cyanobacteria, evidence for the primary producers and consumers in the system. Microscopic study of the microcoprolites, using SEM, EDS elemental analysis, micro-CT and FIB-SEM scanning, and Raman testing, revealed that crescent-shaped, symmetrically arranged canals indicate a possibility that these micron-sized pellets belong to the ichnospecies Palaxius isp. produced by crustaceans. Comparison of the microcoprolites, with their preserved canals, with fossilized intestines from lophogastrid shrimps confirms their source, based on similarities in ultrastructure and chemical composition. Our discovery confirms the rise of Modern-type zooplankton, represented by lophogastrids and other arthropods, replacing extinct Palaeozoic marine invertebrate taxa while the phytoplankton may still have been primitive and represented by cyanobacteria. The pyramid of energy and trophic levels of a wellpreserved Middle Triassic marine biota now are more fully understood, representing an example of the full recovery of the marine ecosystem.
WOS关键词END-PERMIAN EXTINCTION ; YUNNAN PROVINCE ; SOUTHWEST CHINA ; EXCEPTIONAL PRESERVATION ; GEOBIOLOGIC FEATURES ; GUANLING FORMATION ; NEUQUEN BASIN ; RECOVERY ; COPROLITES ; EVOLUTION
资助项目National Natural Science Foundation of China[41972003] ; National Natural Science Foundation of China[42102019] ; National Natural Science Foundation of China[42272030] ; National Natural Science Foundation of China[42072004] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; China Geological Survey projects[DD20230219]
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
出版者ELSEVIER
WOS记录号WOS:001150181700001
资助机构National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; China Geological Survey projects
源URL[http://ir.nigpas.ac.cn/handle/332004/42971]  
专题中国科学院南京地质古生物研究所
通讯作者Luo, Mao; Benton, Michael J.
作者单位1.Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Geosci Innovat Ctr Southwest China, China Geol Survey, Chengdu 610218, Peoples R China
3.Chengdu Ctr, Chengdu 610218, Peoples R China
4.Univ Bristol, Sch Earth Sci, Bristol BS8 1RJ, England
5.Univ Chinese Acad Sci, Nanjing Coll, Nanjing 210049, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
7.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, 39 East Beijing Rd, Nanjing 210008, Peoples R China
8.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Yuxuan,Luo, Mao,Benton, Michael J.,et al. Crustacean microcoprolites from the Middle Triassic Luoping Biota, China: Evidence for primary producers in the first Modern-type marine ecosystems[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2023,632:13.
APA Chen, Yuxuan.,Luo, Mao.,Benton, Michael J..,Hu, Shixue.,Zhang, Qiyue.,...&Wen, Wen.(2023).Crustacean microcoprolites from the Middle Triassic Luoping Biota, China: Evidence for primary producers in the first Modern-type marine ecosystems.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,632,13.
MLA Chen, Yuxuan,et al."Crustacean microcoprolites from the Middle Triassic Luoping Biota, China: Evidence for primary producers in the first Modern-type marine ecosystems".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 632(2023):13.

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来源：南京地质古生物研究所

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