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Crustacean microcoprolites from the Middle Triassic Luoping Biota, China: Evidence for primary producers in the first Modern-type marine ecosystems
Chen, Yuxuan1,2,3; Luo, Mao1,2,4; Benton, Michael J.5; Hu, Shixue6,7; Zhang, Qiyue6,7; Ji, Cheng1,2,4; Huang, Jinyuan6,7; Kou, Qi8; Zhou, Changyong6,7; Wen, Wen6
2023-12-15
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume632Pages:13
Corresponding AuthorLuo, Mao(maoluo@nigpas.ac.cn) ; Benton, Michael J.(mike.benton@bristol.ac.uk)
AbstractModern-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.
KeywordMicrocoprolites Lophogastrids Food web Middle Triassic Biotic recovery Bottom-up perspective
DOI10.1016/j.palaeo.2023.111840
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:001150181700001
PublisherELSEVIER
WOS KeywordEND-PERMIAN EXTINCTION ; YUNNAN PROVINCE ; SOUTHWEST CHINA ; EXCEPTIONAL PRESERVATION ; GEOBIOLOGIC FEATURES ; GUANLING FORMATION ; NEUQUEN BASIN ; RECOVERY ; COPROLITES ; EVOLUTION
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Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/184387
Collection海洋生物分类与系统演化实验室
Corresponding AuthorLuo, Mao; Benton, Michael J.
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, 39 East Beijing Rd, Nanjing 210008, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ Chinese Acad Sci, Nanjing Coll, Nanjing 210049, Peoples R China
5.Univ Bristol, Sch Earth Sci, Bristol BS8 1RJ, England
6.Chengdu Ctr, Chengdu 610218, Peoples R China
7.Geosci Innovat Ctr Southwest China, China Geol Survey, Chengdu 610218, Peoples R China
8.Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, 7 Nanhai Rd, Qingdao 266071, Peoples R China
Recommended Citation
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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