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Encrustation patterns on brachiopods from the Middle-Upper Devonian and their paleo-environmental implications
Chang, Xiaolin1,2; Hou, Mingcai1,2; Shi, He1; Wang, Hu1; Lai, Jiankang3; Zhang, Hua(张华)4
2021-12-15
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume584Pages:16
Abstract

Epibionts and hosts as well as their interactions comprise a special ecosystem in the marine hard-substrate communities which could provide paleoecological implications for the critical events of Earth history. Abundant brachiopod hosts were sampled from the Givetian-Famennian of the Longmenshan region in South China. We describe the encrustation patterns on the brachiopods in terms of epibiont abundance, diversity, relationships between hosts and epibionts, and interaction between epibiont taxa. A total of 3067 brachiopod specimens are examined and identified into seven species, among which 683 specimens are encrusted by epibionts represented by eight taxa. The percentage of encrusted shells and the mean number of epibionts per shell of host brachiopods, are mainly related to the shell morphology of the host and ecological environments. The abundance of epibionts and the number of associations are quite variable among the Middle-Late Devonian stages. Most of epibionts have selective preferences on certain host taxa. The individual size of epibionts is an important factor in choosing the host. During the Givetian and Frasnian time, encrusters were much more abundant on the dorsal valves than on the ventral valves of host brachiopods. However, until the Famennian time, the biconvex spirifemids have more encrusters on the ventral valves. Such an encrusting change from dorsal valves to ventral valves across the F/F boundary might not be related to ecological environments, yet only the change of host taxa. The epibionts encrusted on host brachiopods did not display a sudden collapse around the F-F boundary interval. The epibiont abundance, diversity, relationships between hosts and epibionts, as well as interaction between epibiont taxa do not show a significant change around the F/F boundary. It may indicate there was no dramatic environmental change in the Frasnian and Famennian boundary interval but long-term ecological damage during the Frasnian in the studied region.

KeywordEpibiont Host brachiopods Encruster Paleoecology Frasnian-Famennian event
DOI10.1016/j.palaeo.2021.110703
Indexed BySCI
Language英语
WOS KeywordENCRUSTING FAUNA ; MASS-EXTINCTION ; LATE ORDOVICIAN ; PALEOECOLOGY ; COMMUNITIES ; EVOLUTION ; SAAREMAA ; ECOLOGY ; SEA ; STROMATOPOROIDS
Funding ProjectNational Natural Science Foundation of China[41902120] ; National Natural Science Foundation of China[42050104]
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000709240700007
Funding OrganizationNational Natural Science Foundation of China
PublisherELSEVIER
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/39967
Collection中国科学院南京地质古生物研究所
Corresponding AuthorChang, Xiaolin; Hou, Mingcai
Affiliation1.Chengdu Univ Technol, Inst Sedimentary Geol, Chengdu 610059, Peoples R China
2.Chengdu Univ Technol, Key Lab Deep Time Geog & Environm Reconstruct & A, Minist Nat Resources, Chengdu 610059, Peoples R China
3.Chengdu Univ Technol, Inst Earth Sci, Chengdu 610059, Peoples R China
4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Chang, Xiaolin,Hou, Mingcai,Shi, He,et al. Encrustation patterns on brachiopods from the Middle-Upper Devonian and their paleo-environmental implications[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2021,584:16.
APA Chang, Xiaolin,Hou, Mingcai,Shi, He,Wang, Hu,Lai, Jiankang,&Zhang, Hua.(2021).Encrustation patterns on brachiopods from the Middle-Upper Devonian and their paleo-environmental implications.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,584,16.
MLA Chang, Xiaolin,et al."Encrustation patterns on brachiopods from the Middle-Upper Devonian and their paleo-environmental implications".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 584(2021):16.
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