气候变化领域集成服务门户(CCPortal): Ethology of the trace fossil Chondrites: Form, function and environment

CCPortal

DOI	10.1016/j.earscirev.2019.102989
	Ethology of the trace fossil Chondrites: Form, function and environment
	Baucon A.; Bednarz M.; Dufour S.; Felletti F.; Malgesini G.; Neto de Carvalho C.; Niklas K.J.; Wehrmann A.; Batstone R.; Bernardini F.; Briguglio A.; Cabella R.; Cavalazzi B.; Ferretti A.; Zanzerl H.; McIlroy D.
发表日期	2020
ISSN	00128252
卷号	202
英文摘要	The behaviour of the iconic ichnogenus Chondrites is re-evaluated based on review of existing literature and analysis of novel data (macroscopic, thin section and ESEM-EDX observations; CT-scans and resin peels of modern analogues; computer-controlled serial grinding; morphometric analysis and theoretical morphology). The bedding plane expression of Chondrites is well-constrained by morphometry: (1) the angle of dichotomy formed by a pair of adjacent branches is typically between 30° and 56° (interquartile range; mean: 47°); (2) branching order is between 1 and 9; (3) branches are, on average, nine times longer than wide. In the third dimension, downward branching is dominant but bundled shafts and upward branching may be present. The size of Chondrites increased markedly from the Late Jurassic to the Late Cretaceous, suggesting that the tracemakers became larger and larger. Microfabric analysis of Chondrites shows active fill or, alternatively, passive fill of empty tunnels by currents or clay percolation, a new mechanism proposed herein. The tracemakers built Chondrites to obtain food: (1) vermiform deposit feeders produced Chondrites for searching for food in the sediment (fodinichnion); (2) asymbiotic bivalves built Chondrites for cultivating and directly ingesting bacteria (agrichnion); (3) chemosymbiotic bivalves produced Chondrites to provide symbionts with chemical agents. Chondrites was modified through the life of the tracemaker or it represented a part of the producer's lifespan. Chondrites — and its modern tracemaker(s) — is associated with a range of marine settings, including well-oxygenated, dysoxic and space-limited (nucleocave) environments. As such, Chondrites is regarded as an extremotolerant ichnotaxon. © 2019 Elsevier B.V.
关键词	Chondrites Ichnology Palaeontology Polychaete Thyasirid
英文关键词	Bivalvia; Polychaeta; Thyasiridae
语种	英语
来源期刊	Earth Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203630
作者单位	DISTAV, University of Genova, Corso Europa 26, Genova, 16132, Italy; Geology Office, Naturtejo UNESCO Global Geopark, Avenida Zona Nova de Expansão, Idanha-a-Nova, 6060-101, Portugal; Instituto D. Luiz, University of Lisbon, Faculdade de Ciências da Universidade de Lisboa, Campo Grande Edifício C1, Piso 1, Lisbon, 1749-016, Portugal; Municipality of Idanha-a-Nova – Centro Cultural Raiano, Av. Joaquim Morão, Idanha-a-Nova, 6060-101, Portugal; Department of Earth Sciences, Memorial University of Newfoundland, St John's, NL A1B 3X5, Canada; Department of Biology, Memorial University of Newfoundland, St John's, Newfoundland and Labrador A1B 3X9, Canada; Department of Earth Sciences ‘A. Desio’, University of Milan, Via Mangiagalli 34, Milano, 20133, Italy; RINA consulting, Via Corsica 12, Genova, 16132, Italy; School of Integrative Plant Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, 18953, United States; Marine Research Department, Senckenberg am Meer, Suedstrand 40, Wilhelms...
推荐引用方式 GB/T 7714	Baucon A.,Bednarz M.,Dufour S.,et al. Ethology of the trace fossil Chondrites: Form, function and environment[J],2020,202.
APA	Baucon A..,Bednarz M..,Dufour S..,Felletti F..,Malgesini G..,...&McIlroy D..(2020).Ethology of the trace fossil Chondrites: Form, function and environment.Earth Science Reviews,202.
MLA	Baucon A.,et al."Ethology of the trace fossil Chondrites: Form, function and environment".Earth Science Reviews 202(2020).