Definitions for "Ecofact"
a find at an archaeological site which comes from something living, but which has not been modified by human activity
An artifact that was not altered for human use (e.g., microscopic remains of pollen from edible plants, unmodified animal bone)
This identifies things that we find on a dig that give us information from past environments. For example, seeds, animal bones and soil could all be ecofacts. But, if the bones had some evidence of human modification they would be???? Correct, artifacts.
Non-artifactual organic and environmental remains which have cultural relevance, e.g. faunal and flora material as well as soils and sediments.