Eozoön /(?)/

E·o·zo·ön

Eozoön

n.

pl. Eozoöns, Eozoa

  1. 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. (Paleon.)