Would anyone be interested in trading for high quality unpolished Ordovician STROMATOLITES of various sizes from a few ounces to up to ten pounds in weight? Fossils have been collected in Wisconsin USA (from the Oneota Formation). I have a large number of every size from a few ounces to ten pounds. Most all contain classic stromatolite features including concave (dome-like) tops, concave bottoms and multiple apical laminae (visible from side-view). I am attaching representative photos of a few specimens. Many more are available based on what you may desire. Additional photos can be sent. Let me know if you' are interested.
I would be willing to consider almost any kind of fossil in trade to expand my collection. Crinoids, trilobites, blastoids, brachiopods, plant or animal fossils, and especially maclurites are examples. THANKS.
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