Ammonites

[BridgetownTreasures]

Are these of any particular interest or value? I see a lot of these, but the crystal structures inside the chambers are pretty cool. Came from an estate. Each piece is approximately 2” in diameter. Thanks for any input!

 

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[Red-Coat]

Pretty and interesting but unfortunately not valuable. Those look like they were purchased from a gift shop and would have cost just a few dollars. The vast majority of such offerings without any species assignation or location provided have come from Morocco, where there are extensive Devonian deposits (and also more recent Cretaceous deposits).

I noticed similar items and other cut/polished fossils on sale at a gift shop when I visited the Grand Canyon (leaving open the possible interpretation that they have come out of the canyon itself, which is clearly what the gift shop would want you to believe) but everything I saw was Moroccan.