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Hadn't thought of that. Hmmmmmm.... Fossil nacre iridescense would seem to be original, but I bet it can't be called "coloration" since it isn't visible in the living animal, right? Thanks, Carl At 04:02 PM 6/13/2005, you wrote: >Ammonites!!! I've seen some sphenodiscus and scaphites with beautiful play >of colors. I don't know if it is the natural color or if it is a >reflective or refractive property of the nacre. Neil would surely know. > >B. > Carl Mehling Fossil Amphibian, Reptile, and Bird Collections Division of Paleontology American Museum of Natural History Central Park West @79th Street New York, NY 10024 (212) 769-5849 Fax: (212) 769-5842 cosm@amnh.org
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