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DOI | 10.1016/j.palaeo.2014.12.006 |
Bacterial origin of iron-rich microspheres in Miocene mammalian fossils | |
Pesquero, M. Dolores1,3; Alcala, Luis1; Bell, Lynne S.2; Fernandez-Jalvo, Yolanda3 | |
通讯作者 | Pesquero, M. Dolores |
来源期刊 | PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
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ISSN | 0031-0182 |
EISSN | 1872-616X |
出版年 | 2015 |
卷号 | 420页码:27-34 |
英文摘要 | In their taphonomic study of a Cretaceous dinosaur fossil from the Gobi desert (Mongolia), Kremer et at (2012) noted that the histological sections of this fossil preserved within their core iron oxide microspheres containing carbonaceous matter. They interpreted the carbonaceous nature of these structures as organic matter and suggested a microbial origin (probably bacterial) for the structures. Microspheres, similar both in composition and shape, have been identified in fossils from Cerro de la Garita, a Miocene mammalian site in Teruel, Spain. In the latter case, compact bone was also attacked by terrestrially associated bacteria (microscopic focal destruction [MFD)) which were enriched in iron and gives support to the idea that bacteria acted as the biological agent for iron precipitation during soft tissue decomposition in the early stages of bone diagenesis. Subsequent diagenetic episodes of mineralization related to the environmental context differ between these two sites; calcite precipitation at the palaeo-lakeshore of Cerro de la Garita and calcite and gypsum in the Gobi desert study case of Kremer et at (2012). If the microsphere is bacterial in origin, it may be a useful taphonomic indicator of terrestrial exposure within a transitional environment of land and water. (C) 2014 Elsevier B.V. All rights reserved. |
英文关键词 | Iron microbial mineralization Vertebrate Miocene site Spain Taphonomy Bacteria Bone diagenesis |
类型 | Article |
语种 | 英语 |
国家 | Spain ; Canada |
收录类别 | SCI-E |
WOS记录号 | WOS:000349804300003 |
WOS关键词 | DIAGENETIC ALTERATION ; PRECIPITATION ; BONE ; TAPHONOMY ; OXIDES |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology |
WOS研究方向 | Physical Geography ; Geology ; Paleontology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/189495 |
作者单位 | 1.Fdn Conjunto Paleontol Teruel Dinopolis, Teruel 44002, Spain; 2.Simon Fraser Univ, Ctr Forens Res, Sch Criminol, Burnaby, BC V5A 1S6, Canada; 3.CSIC, Museo Nacl Ciencias Nat, E-28006 Madrid, Spain |
推荐引用方式 GB/T 7714 | Pesquero, M. Dolores,Alcala, Luis,Bell, Lynne S.,et al. Bacterial origin of iron-rich microspheres in Miocene mammalian fossils[J],2015,420:27-34. |
APA | Pesquero, M. Dolores,Alcala, Luis,Bell, Lynne S.,&Fernandez-Jalvo, Yolanda.(2015).Bacterial origin of iron-rich microspheres in Miocene mammalian fossils.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,420,27-34. |
MLA | Pesquero, M. Dolores,et al."Bacterial origin of iron-rich microspheres in Miocene mammalian fossils".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 420(2015):27-34. |
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