“Eozoon canadense”的意思、由来-开放百科全书

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Eozoon canadense

释义

References

Eozoön canadense (literally, "dawn animal of Canada") is a pseudofossil.

John William Dawson (1865) described the banded structures of coarsely crystalline calcite and serpentine as a gigantic Foraminifera, making it the oldest known fossil. It was found in Precambrian metamorphosed limestone of Canada, at Côte St. Pierre near Grenville (Quebec) in 1863. It was later found in several other localities. Dawson called it "one of the brightest gems in the scientific crown of the Geological Survey of Canada". In 1894, it was shown that the place where it was found was associated with metamorphism (O'Brien, 1970; Adelman, 2007).

Similar Eozoön structures were subsequently found in metamorphosed limestone blocks erupted from Mt. Vesuvius, where high-temperature physical and chemical processes were responsible for their formation (O'Brien, 1970).

References

{{cite journal|last=Adelman|first=J.|coauthors=|year=2007|title=Eozoön: debunking the dawn animal|journal=Endeavor|volume=31|issue=3|pages=94–98|doi=10.1016/j.endeavour.2007.07.002|pmid=17765972}}
{{cite journal|doi=10.1144/GSL.JGS.1865.021.01-02.12|last=Dawson|first=J. W.|coauthors=|year=1865|title=On the structure of certain organic remains in the Laurentian limestones of Canada|journal=Quart. J. Geol. Soc.|issn=|volume=21|issue=|pages=51–59}}
{{cite journal|last=O'Brien|first=C. F.|coauthors=|year=1970|title=Eozoön canadense "The dawn animal of Canada"|journal=Isis|volume=61|issue=2|pages=206–223|doi=10.1086/350620}}

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