Is trading in Native american coral pieces legal? - Identifying

There are of course a lot of Native pieces which have coral in them, but I wondered if it is legal to sell coral? Or is this coral a type that is legal? I hope someone can explain this to me? Thanks in advance for your help!

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Red Coral Jewelry in Native American Culture

A Term Used Solely As A Trade Name Is Unregistrable As A Trademark In The U.S. - Trademark - United States

Native American style Lanyard, beaded badge holder

Pre-1492 AD: Fossils & Native People - Fossils and Paleontology (U.S. National Park Service)

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Can you provide examples of trading between Native American tribes? How often did this occur and what were some common trading goods? - Quora

The genomic landscape of Mexican Indigenous populations brings insights into the peopling of the Americas

Technology reveals new picture of ancient Native American culture

How to Spot Fake Native American Jewelry - Bellatory