Cephalopod Ink from Jurassic Period Identical to Modern Cuttlefish Ink, U.Va. Study Shows
An international team of researchers, including a University of Virginia professor, has found that two ink sacs from 160-million-year-old giant cephalopod fossils discovered two years ago in England contain the pigment melanin, and that it is essentially identical to the melanin found in the ink sac of a modern-day cuttlefish.