Mineralization Controls Informative Biomarker Preservation Associated With Soft Part Fossilization in Deep Time

IF 3.4 2区 地球科学 Q2 BIOLOGY
Geobiology Pub Date : 2025-09-18 DOI:10.1111/gbi.70030
Madison Tripp, Jasmina Wiemann, Luke Brosnan, William D. A. Rickard, Vivi Vajda, Michael Ernst Böttcher, Paul F. Greenwood, Kliti Grice
{"title":"Mineralization Controls Informative Biomarker Preservation Associated With Soft Part Fossilization in Deep Time","authors":"Madison Tripp,&nbsp;Jasmina Wiemann,&nbsp;Luke Brosnan,&nbsp;William D. A. Rickard,&nbsp;Vivi Vajda,&nbsp;Michael Ernst Böttcher,&nbsp;Paul F. Greenwood,&nbsp;Kliti Grice","doi":"10.1111/gbi.70030","DOIUrl":null,"url":null,"abstract":"<p>Diagenetically mineralized fossil tissues represent invaluable paleobiological evidence of past life. Lipid biomarkers may be identified alongside fossils, yet the relationship between localized, diagenetic mineral precipitation, and lipid preservation remains underexplored. Coprolites (fossilized feces) attract a unique diversity of early diagenetic minerals including carbonates and phosphates, within individual samples, mediating molecular preservation of soluble lipid biomarkers alongside exceptional morphological preservation. Analysis of a well-preserved coprolite from the Carboniferous (307 ± 0.1 Ma) Mazon Creek assemblage, USA via time of flight-secondary ion mass spectrometry (ToF-SIMS) spatial compound mapping demonstrated the association of 5α,14α,17α(H) 20<i>R</i> cholestane, a C<sub>27</sub> dietary sterane, with iron carbonate (and some pyrite) rather than phosphate minerals. Furthermore, Raman spectroscopic fingerprinting of a suite of organic-rich fossils spanning a number of biological species and preserved across the Mazon Creek site and other depositional settings was utilized to explore whether the localized preservation of steroids in carbonate phases represents a <i>lagerstätten</i>-specific or generalizable pattern. Our spectroscopic analyses demonstrate a significant positive correlation between signatures of lipid biomarkers and carbonates rather than phosphates across all soft-part samples at the Mazon Creek site and throughout Phanerozoic time and space. Early diagenetic carbonate measurably immobilizes otherwise labile lipid biomarkers and shields them against diagenetic stressors. Localized preservation identifies carbonate phases as a preferential resource for lipid-based biological information and reveals organomineral associations as a new frontier in understanding the survival of molecules in deep time.</p>","PeriodicalId":173,"journal":{"name":"Geobiology","volume":"23 5","pages":""},"PeriodicalIF":3.4000,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/gbi.70030","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geobiology","FirstCategoryId":"89","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1111/gbi.70030","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"BIOLOGY","Score":null,"Total":0}
引用次数: 0

Abstract

Diagenetically mineralized fossil tissues represent invaluable paleobiological evidence of past life. Lipid biomarkers may be identified alongside fossils, yet the relationship between localized, diagenetic mineral precipitation, and lipid preservation remains underexplored. Coprolites (fossilized feces) attract a unique diversity of early diagenetic minerals including carbonates and phosphates, within individual samples, mediating molecular preservation of soluble lipid biomarkers alongside exceptional morphological preservation. Analysis of a well-preserved coprolite from the Carboniferous (307 ± 0.1 Ma) Mazon Creek assemblage, USA via time of flight-secondary ion mass spectrometry (ToF-SIMS) spatial compound mapping demonstrated the association of 5α,14α,17α(H) 20R cholestane, a C27 dietary sterane, with iron carbonate (and some pyrite) rather than phosphate minerals. Furthermore, Raman spectroscopic fingerprinting of a suite of organic-rich fossils spanning a number of biological species and preserved across the Mazon Creek site and other depositional settings was utilized to explore whether the localized preservation of steroids in carbonate phases represents a lagerstätten-specific or generalizable pattern. Our spectroscopic analyses demonstrate a significant positive correlation between signatures of lipid biomarkers and carbonates rather than phosphates across all soft-part samples at the Mazon Creek site and throughout Phanerozoic time and space. Early diagenetic carbonate measurably immobilizes otherwise labile lipid biomarkers and shields them against diagenetic stressors. Localized preservation identifies carbonate phases as a preferential resource for lipid-based biological information and reveals organomineral associations as a new frontier in understanding the survival of molecules in deep time.

Abstract Image

矿化控制深部软部石化相关生物标志物信息保存。
成岩矿化的化石组织代表了过去生命宝贵的古生物证据。脂质生物标志物可能与化石一起被发现,但局部成岩矿物沉淀与脂质保存之间的关系仍未得到充分探索。粪化石(粪便化石)在单个样品中吸引了独特的早期成岩矿物多样性,包括碳酸盐和磷酸盐,介导了可溶性脂质生物标志物的分子保存以及特殊的形态保存。利用飞行时间-二次离子质谱(ToF-SIMS)空间化合物图谱分析了美国石炭纪(307±0.1 Ma) Mazon Creek组合中保存完好的粪化石,发现5α,14α,17α(H) 20R胆甾烷(一种C27膳食甾烷)与碳酸铁(和一些黄铁矿)而不是磷酸盐矿物存在关联。此外,研究人员利用拉曼光谱指纹图谱对一组富含有机物的化石进行了分析,这些化石跨越了许多生物物种,保存在马松溪遗址和其他沉积环境中,用于探索碳酸盐相中类固醇的局部保存是否代表lagerstätten-specific或可推广的模式。我们的光谱分析表明,在整个显生宙的时间和空间中,在Mazon Creek遗址的所有软质样品中,脂质生物标志物的特征与碳酸盐而不是磷酸盐之间存在显著的正相关。早期成岩碳酸盐可以固定其他不稳定的脂质生物标志物,并保护它们免受成岩应激源的影响。局部保存确定了碳酸盐相是基于脂质的生物信息的首选资源,并揭示了有机生物关联,这是了解分子在深时间生存的新前沿。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 求助全文
来源期刊
Geobiology
Geobiology 生物-地球科学综合
CiteScore
6.80
自引率
5.40%
发文量
56
审稿时长
3 months
期刊介绍: The field of geobiology explores the relationship between life and the Earth''s physical and chemical environment. Geobiology, launched in 2003, aims to provide a natural home for geobiological research, allowing the cross-fertilization of critical ideas, and promoting cooperation and advancement in this emerging field. We also aim to provide you with a forum for the rapid publication of your results in an international journal of high standing. We are particularly interested in papers crossing disciplines and containing both geological and biological elements, emphasizing the co-evolutionary interactions between life and its physical environment over geological time. Geobiology invites submission of high-quality articles in the following areas: Origins and evolution of life Co-evolution of the atmosphere, hydrosphere and biosphere The sedimentary rock record and geobiology of critical intervals Paleobiology and evolutionary ecology Biogeochemistry and global elemental cycles Microbe-mineral interactions Biomarkers Molecular ecology and phylogenetics.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信