Tough Biomineral Lining Seashells Found To Have Faithfully Recorded Ancient Ocean Temperature Nacre, touted as the mother-of-pearl, carries a faithful record of ancient ocean temperature. This was revealed in a new study, which says the lustrous tough biomineral that lines seashells had its origins in a mollusk, layer by layer. by Kalyan Kumar
Science Oldest Artwork is with Shark Tooth on Mollusk Shell, Drawn 540,000 Years Ago by James Maynard