Word Study
eozoön
CIDE DICTIONARY
eozoön, n. [NL., fr. Gr. 'hw`s dawn + zw^,on an animal.].
A peculiar structure found in the Archæan limestones of Canada and other regions. By some geologists it is believed to be a species of gigantic Foraminifera, but others consider it a concretion, without organic structure. [1913 Webster]
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