||E`o*zo"ön (?), n.; pl.
Eozoöns (#), L. Eozoa (#).
[NL., fr. Gr. 'hw`s dawn + zw^,on an animal.]
(Paleon.) 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.