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Definition of microfossil
: a small fossil that typically can be studied only microscopically and that may be either a fragment of a larger organism or an entire minute organism
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Recent Examples of microfossil from the Web
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The rush of water washed ashore marine worms, microfossils of which were recently unearthed.
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The microfossils also lend support to the idea that the warm, watery, mineral-rich neighborhoods around submerged vents are prime places for life to emerge, whether on this planet, on the seafloors of icy moons, or elsewhere in the universe.
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However, many scientists believe the Western Australia microfossils are not fossils at all, but the result non-biological processes of geology such as changes in heat and pressure.
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The microfossil of a voracious eukaryote doesn’t exactly have the distinguishing characteristics of, say, a Tyrannosaurus rex or a saber-toothed cat.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'microfossil'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of microfossil
1924
Learn More about microfossil
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Britannica.com: Encyclopedia article about microfossil
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