The Collaborative International Dictionary of English v.0.48:

Eozoonal \E`o*zo"["o]n*al\ ([=e]`[-o]*z[=o]"[o^]n*al), a.
   (Paleon.)
   Pertaining to the eozo["o]n; containing eozo["o]ns; as,
   eozo["o]nal limestone.
   [1913 Webster]