unpermineralized

Etymology
From.

Adjective

 * 1) Not permineralized.
 * 2) * 2012, Wolfe AP, Csank AZ, Reyes AV, McKellar RC, Tappert R, et al., "Pristine Early Eocene Wood Buried Deeply in Kimberlite from Northern Canada", PLoS ONE 7(9): e45537.doi:10.1371/journal.pone.0045537:
 * Anatomy of the unpermineralized wood permits conclusive identification to the genus Metasequoia (Cupressaceae).