气候变化领域集成服务门户(CCPortal): Taphonomic bias in exceptionally preserved biotas

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DOI	10.1016/j.epsl.2019.115873
	Taphonomic bias in exceptionally preserved biotas
	Saleh F.; Antcliffe J.B.; Lefebvre B.; Pittet B.; Laibl L.; Perez Peris F.; Lustri L.; Gueriau P.; Daley A.C.
发表日期	2020
ISSN	0012821X
卷号	529
英文摘要	Exceptionally preserved fossil biotas provide crucial data on early animal evolution. Fossil anatomy allows for reconstruction of the animal stem lineages, informing the stepwise process of crown group character acquisition. However, a confounding factor to these evolutionary analyses is information loss during fossil formation. Here we identify that the Ordovician Fezouata Shale has a clear taphonomic difference when compared to the Cambrian Burgess Shale and Chengjiang Biota. In the Fezouata Shale, soft cellular structures are most commonly associated with partially mineralized and sclerotized tissues, which may be protecting the soft tissue. Also, entirely soft non-cuticularized organisms are absent from the Fezouata Shale. Conversely, the Cambrian sites commonly preserve entirely soft cellular bodies and a higher diversity of tissue types per genus. The Burgess and Chengjiang biotas are remarkably similar, preserving near identical proportions of average tissue types per genus. However, the Burgess shale has almost double the proportion of genera that are entirely soft as compared to the Chengjiang Biota, indicating that the classic Burgess Shale was the acme for soft tissue preservation. Constraining these biases aids the differentiation of evolutionary and taphonomic absences, which is vital to incorporating anatomical data into a coherent framework of character acquisition during the earliest evolution of animals. © 2019 Elsevier B.V.
关键词	Cambrian exceptional preservation Ordovician taphonomy
英文关键词	Animals; Biological materials preservation; Tissue; Animal evolution; Cambrians; Cellular body; Cellular structure; Coherent frameworks; Information loss; Ordovician; Taphonomy; Shale; anatomy; biota; Cambrian; fossil; Ordovician; soft tissue preservation; taphonomy; Chengjiang; China; Yunnan; Animalia
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/202873
作者单位	Université de Lyon, Université Claude Bernard Lyon 1, École Normale Supérieure de Lyon, CNRS, UMR5276, LGL-TPE, Villeurbanne, France; Institute of Earth Sciences, University of Lausanne, Géopolis, Lausanne, CH-1015, Switzerland; The Czech Academy of Sciences, Institute of Geology, Rozvojová 269, Prague 6, 165 00, Czech Republic; Institute of Geology and Palaeontology, Faculty of Science, Charles University, Albertov 6, Prague, 12843, Czech Republic
推荐引用方式 GB/T 7714	Saleh F.,Antcliffe J.B.,Lefebvre B.,et al. Taphonomic bias in exceptionally preserved biotas[J],2020,529.
APA	Saleh F..,Antcliffe J.B..,Lefebvre B..,Pittet B..,Laibl L..,...&Daley A.C..(2020).Taphonomic bias in exceptionally preserved biotas.Earth and Planetary Science Letters,529.
MLA	Saleh F.,et al."Taphonomic bias in exceptionally preserved biotas".Earth and Planetary Science Letters 529(2020).