ecofact

ecofact In archaeology, a natural object or substance that has not been technologically altered but that has cultural significance; such as, a shell carried from the ocean to an inland settlement.
Found on http://www.wordinfo.info/words/index/info/view_unit/2787/2

ecofact

In archaeology, any natural object or remains of something not made by people that has a cultural relevance; for example, faunal, floral, or sedimentary material. ...
Found on http://www.encyclo.co.uk/local/20688

Ecofact

Object not made by humans, but indicating the presence of humans at a site, e.g. bone, shell and seed. Garbage can be considered ecofact if it is not modified by humans, otherwise the garbage is considered artefact.
Found on http://www.abc.se/~pa/uwa/glossary.htm
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