亞化石：修订间差异
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小无编辑摘要 |
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| editor-last = Stepanova | editor-first = Anna |
| editor-last = Stepanova | editor-first = Anna |
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| journal = PLoS ONE | volume = 5 | issue = 10 | page = 13A | month = October | year = 2010 |
| journal = PLoS ONE | volume = 5 | issue = 10 | page = 13A | month = October | year = 2010 |
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| doi = 10.1371/journal.pone.0013334 |
| doi = 10.1371/journal.pone.0013334 |
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}}</ref>。而在[[第四紀]]的沉積物裡，則發現了不少[[chironomid]] head capsules, [[ostracod]] [[carapace]]s, [[diatoms]], and [[foraminifera]]的亞化石。 |
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The main importance of subfossil vs. [[fossil]] remains is that the former contain organic material, which can be used for [[radiocarbon dating]] or extraction and sequencing of [[DNA sequencing|DNA]], [[protein sequencing|protein]], or other biomolecules. Additionally, [[isotope]] ratios can provide much information about the ecological conditions under which extinct animals lived. Subfossils are useful for studying the evolutionary history of an environment and can be important to studies in [[paleoclimatology]]. |
The main importance of subfossil vs. [[fossil]] remains is that the former contain organic material, which can be used for [[radiocarbon dating]] or extraction and sequencing of [[DNA sequencing|DNA]], [[protein sequencing|protein]], or other biomolecules. Additionally, [[isotope]] ratios can provide much information about the ecological conditions under which extinct animals lived. Subfossils are useful for studying the evolutionary history of an environment and can be important to studies in [[paleoclimatology]]. |
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2012年9月17日 (一) 03:59的版本
亞化石，亦作半化石或準化石，泛指所有因時間不足或其他未能滿足化石化的條件而形成的生物殘骸，例如：骨塊、巢穴或排泄物。常見於數千年前的生物出土物，存在於岩洞或其他遮蔽物[1]。
來自中生代的亞化石十分罕見，通常都已高度腐化，所以爭議比較大[2]。而在第四紀的沉積物裡，則發現了不少chironomid head capsules, ostracod carapaces, diatoms, and foraminifera的亞化石。
The main importance of subfossil vs. fossil remains is that the former contain organic material, which can be used for radiocarbon dating or extraction and sequencing of DNA, protein, or other biomolecules. Additionally, isotope ratios can provide much information about the ecological conditions under which extinct animals lived. Subfossils are useful for studying the evolutionary history of an environment and can be important to studies in paleoclimatology.
Subfossils are often found in depositionary environments, such as lake sediments, oceanic sediments, and soils. Once deposited, physical and chemical weathering can alter the state of preservation. Small subfossils can be ingested by living organisms.
参考文献
- ^ Subfossils Collections. South Australian Museum. [2012-08].
- ^ Peterson, Joseph E.; Lenczewski, Melissa E.; Scherer, Reed P. Stepanova, Anna , 编. Influence of Microbial Biofilms on the Preservation of Primary Soft Tissue in Fossil and Extant Archosaurs. PLoS ONE. 2010, 5 (10): 13A. doi:10.1371/journal.pone.0013334. 已忽略未知参数
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