This colorful Desmoceras ammonite comes from the Cretaceous Rocks of Madagascar and is over 150 million years old. It has been carefully cleaned and polished to highlight the iridescent red color. This bright red color comes from layers of aragonite and concholin that were preserved during its fossilization in a low acid environment.
The Children's Museum of Indianapolis
This file is licensed under a CC BY-SA 3.0 license by The Children’s Museum of Indianapolis.
Paleontology -- Jurassic
Paleontology -- Cretaceous
Paleontology -- Mesozoic
Marine animals, Fossil
Further information on this record can be found at its source.