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2016 | 7 | 13-16
Article title

Możliwy wpływ materii pozaziemskiej na bioróżnorodność ordowickich szkarłupni – dane wstępne

Title variants
The possible influence of extraterrestrial matter on Ordovician echinoderm biodiversity – preliminary data
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The Ordovician was a period with large meteorite showers, what was confirmed by fossil chondrite finds in Swedish limestones. In Bukówka section near Kielce deposits of the same age are exposed. During field works was noticed that echinoderms do not occur in three samples. It was proved that echinoderms were very sensitive to environmental changes and their disappearance was associated with a meteorite falls.
Physical description
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