microfossil

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microfossil

(mī′krō-fŏs′əl)
n.
A fossil, as of a pollen grain or unicellular organism, that is too small to study with the naked eye.
References in periodicals archive ?
For moderately well preserved and well-preserved samples, the following sample sizes are recommended: genetic analysis, 5 mg; protein analysis, 5-10 mg; microfossil analysis, 1-3 mg.
Lithological changes coupled with microfossil evidence reveal a complex depositional history that shaped the Beaver Pond site.
The studied units are very rich in microfossils and ichnofossils, but not in body macrofossils, which are only locally abundant.
preserved microfossils 578 Ma: Avalon-style Ediacaran: Rangeomorphs+ Thectardis 635 Ma: Chemical biomarkers of sponges Note: The Neoproterozoic-Phanerozoic boundary equals the Precambrian- Cambrian boundary.
Coverage includes an overview of the topic followed by individual chapters on fossil classification and evolution, sponges, corals, bryozoans, brachiopods, echinoderms, trilobites, mollusks, graptolites, vertebrates, land plants, microfossils, trace fossils, precambrian life, and phanerozoic life.
The last few chapters finally get to the discovery of microfossils in the phosphate-laden beds of the northwestern Highlands of Scotland.
Behind the hype, there was a significant discovery--tiny, segmented structures in a meteorite from Mars that might be microfossils, though skeptics declared they were simply quirky mineral formations.
A sampling of topics: phytolith analysis of ploughed land thin sections from the Treurenberg site, Belgium; microfossils characterization from south Andean economic plants; analysis of phytolith from Braehead archaeological site, Scotland; phytoliths and micropalaeontological data in a boggy soil; and micromorphology and phytoliths study in coastal dunes of the southeastern Pampean plains, Buenos Aires, Argentina.
To improve the correlation of the Upper Ordovician boundary in Estonia, new sections in the Kohtla opencast and Viru underground oil shale mines in northeastern Estonia have been recently studied for microfossils (Fig.
Although the locality is best known for its megafauna, important microfossils have recently been discovered by screen washing in situ sediments from the site.
Digitally enhanced images of microfossils that were originally obtained using a scanning electron microscope.