Noun.  (paleontology, palynology) Any small, non-acid soluble (i.e. non-carbonate, non-siliceous) organic fossil that cannot be classified.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.