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!

DNA fingerprinting: an effective tool for taxonomic identification of precious corals in jewelry

Native America Speaks - Glacier National Park (U.S. National Park Service)

How You Can Authenticate a Navajo Squash Blossom Necklace

Squash blossom is a term which has long been applied to this style of unique necklace produced by Southwestern Indians. It was first made by the

Leon Kirlie Navajo Native American Red Coral Squash Blossom Necklace and Ring Set 26 1/2 Sterling Silver

Identify antique Native American art, The Wandering Bull, LLC

Native American Jewelry Buyers

Chronology of the Indigenous Peoples of San Diego County - San Diego Native American - University of San Diego

Identify antique Native American art, The Wandering Bull, LLC

Technology reveals new picture of ancient Native American culture