by Tyler Cowen
on April 30, 2008 at 5:01 pm
Coprolite. It’s cheaper than fossils, for obvious reasons.
We consider coprolites to be fossils and many excellent examples have been discovered down under.
I had a half of a small coprolite at one time. It had been polished and was very pretty. The original material is replaced with silica, of various colours.
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